diff --git a/Pipfile.lock b/Pipfile.lock
index 487cd0d8..d2f4747d 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -18,19 +18,19 @@
     "default": {
         "asgiref": {
             "hashes": [
-                "sha256:71e68008da809b957b7ee4b43dbccff33d1b23519fb8344e33f049897077afac",
-                "sha256:9567dfe7bd8d3c8c892227827c41cce860b368104c3431da67a0c5a65a949506"
+                "sha256:89b2ef2247e3b562a16eef663bc0e2e703ec6468e2fa8a5cd61cd449786d4f6e",
+                "sha256:9e0ce3aa93a819ba5b45120216b23878cf6e8525eb3848653452b4192b92afed"
             ],
             "markers": "python_version >= '3.7'",
-            "version": "==3.6.0"
+            "version": "==3.7.2"
         },
         "django": {
             "hashes": [
-                "sha256:ad33ed68db9398f5dfb33282704925bce044bef4261cd4fb59e4e7f9ae505a78",
-                "sha256:c36e2ab12824e2ac36afa8b2515a70c53c7742f0d6eaefa7311ec379558db997"
+                "sha256:066b6debb5ac335458d2a713ed995570536c8b59a580005acb0732378d5eb1ee",
+                "sha256:7efa6b1f781a6119a10ac94b4794ded90db8accbe7802281cd26f8664ffed59c"
             ],
             "index": "pypi",
-            "version": "==4.2"
+            "version": "==4.2.1"
         },
         "django-treebeard": {
             "hashes": [
@@ -42,11 +42,11 @@
         },
         "faker": {
             "hashes": [
-                "sha256:49060d40e6659e116f53353c5771ad2f2cbcd12b15771f49e3000a3a451f13ec",
-                "sha256:ac903ba8cb5adbce2cdd15e5536118d484bbe01126f3c774dd9f6df77b61232d"
+                "sha256:80a5ea1464556c06b98bf47ea3adc7f33811a1182518d847860b1874080bd3c9",
+                "sha256:defe9ed618a67ebf0f3eb1895e198c2355a7128a09087a6dce342ef2253263ea"
             ],
             "index": "pypi",
-            "version": "==18.6.0"
+            "version": "==18.9.0"
         },
         "markdown": {
             "hashes": [
@@ -161,22 +161,6 @@
         }
     },
     "develop": {
-        "aiofiles": {
-            "hashes": [
-                "sha256:1142fa8e80dbae46bb6339573ad4c8c0841358f79c6eb50a493dceca14621bad",
-                "sha256:9107f1ca0b2a5553987a94a3c9959fe5b491fdf731389aa5b7b1bd0733e32de6"
-            ],
-            "markers": "python_version >= '3.7' and python_version < '4.0'",
-            "version": "==22.1.0"
-        },
-        "aiosqlite": {
-            "hashes": [
-                "sha256:95ee77b91c8d2808bd08a59fbebf66270e9090c3d92ffbf260dc0db0b979577d",
-                "sha256:edba222e03453e094a3ce605db1b970c4b3376264e56f32e2a4959f948d66a96"
-            ],
-            "markers": "python_version >= '3.7'",
-            "version": "==0.19.0"
-        },
         "alabaster": {
             "hashes": [
                 "sha256:1ee19aca801bbabb5ba3f5f258e4422dfa86f82f3e9cefb0859b283cdd7f62a3",
@@ -187,11 +171,11 @@
         },
         "anyio": {
             "hashes": [
-                "sha256:25ea0d673ae30af41a0c442f81cf3b38c7e79fdc7b60335a4c14e05eb0947421",
-                "sha256:fbbe32bd270d2a2ef3ed1c5d45041250284e31fc0a4df4a5a6071842051a51e3"
+                "sha256:275d9973793619a5374e1c89a4f4ad3f4b0a5510a2b5b939444bee8f4c4d37ce",
+                "sha256:eddca883c4175f14df8aedce21054bfca3adb70ffe76a9f607aef9d7fa2ea7f0"
             ],
-            "markers": "python_full_version >= '3.6.2'",
-            "version": "==3.6.2"
+            "markers": "python_version >= '3.7'",
+            "version": "==3.7.0"
         },
         "appdirs": {
             "hashes": [
@@ -200,6 +184,14 @@
             ],
             "version": "==1.4.3"
         },
+        "appnope": {
+            "hashes": [
+                "sha256:02bd91c4de869fbb1e1c50aafc4098827a7a54ab2f39d9dcba6c9547ed920e24",
+                "sha256:265a455292d0bd8a72453494fa24df5a11eb18373a60c7c0430889f22548605e"
+            ],
+            "markers": "platform_system == 'Darwin'",
+            "version": "==0.1.3"
+        },
         "argon2-cffi": {
             "hashes": [
                 "sha256:8c976986f2c5c0e5000919e6de187906cfd81fb1c72bf9d88c01177e77da7f80",
@@ -245,11 +237,11 @@
         },
         "astroid": {
             "hashes": [
-                "sha256:a1b8543ef9d36ea777194bc9b17f5f8678d2c56ee6a45b2c2f17eec96f242347",
-                "sha256:c81e1c7fbac615037744d067a9bb5f9aeb655edf59b63ee8b59585475d6f80d8"
+                "sha256:078e5212f9885fa85fbb0cf0101978a336190aadea6e13305409d099f71b2324",
+                "sha256:1039262575027b441137ab4a62a793a9b43defb42c32d5670f38686207cd780f"
             ],
             "markers": "python_full_version >= '3.7.2'",
-            "version": "==2.15.4"
+            "version": "==2.15.5"
         },
         "asttokens": {
             "hashes": [
@@ -258,6 +250,14 @@
             ],
             "version": "==2.2.1"
         },
+        "async-lru": {
+            "hashes": [
+                "sha256:3b87ec4f2460c52cc7916a0138cc606b584c75d1ef7d661853c95d1d3acb869a",
+                "sha256:d7c2b873e9af5c5a1f0a87a6c145e7e0b4eb92342b7235dda9dd5b10e950d6e2"
+            ],
+            "markers": "python_version >= '3.8'",
+            "version": "==2.0.2"
+        },
         "attrs": {
             "hashes": [
                 "sha256:69c0dbf2ed392de1cb5ec704444b08a5ef81680a61cb899dc08127123af36a79",
@@ -315,11 +315,11 @@
         },
         "certifi": {
             "hashes": [
-                "sha256:35824b4c3a97115964b408844d64aa14db1cc518f6562e8d7261699d1350a9e3",
-                "sha256:4ad3232f5e926d6718ec31cfc1fcadfde020920e278684144551c91769c7bc18"
+                "sha256:0f0d56dc5a6ad56fd4ba36484d6cc34451e1c6548c61daad8c320169f91eddc7",
+                "sha256:c6c2e98f5c7869efca1f8916fed228dd91539f9f1b444c314c06eef02980c716"
             ],
             "markers": "python_version >= '3.6'",
-            "version": "==2022.12.7"
+            "version": "==2023.5.7"
         },
         "cffi": {
             "hashes": [
@@ -487,31 +487,6 @@
             "markers": "python_version >= '3.6'",
             "version": "==0.1.3"
         },
-        "cryptography": {
-            "hashes": [
-                "sha256:05dc219433b14046c476f6f09d7636b92a1c3e5808b9a6536adf4932b3b2c440",
-                "sha256:0dcca15d3a19a66e63662dc8d30f8036b07be851a8680eda92d079868f106288",
-                "sha256:142bae539ef28a1c76794cca7f49729e7c54423f615cfd9b0b1fa90ebe53244b",
-                "sha256:3daf9b114213f8ba460b829a02896789751626a2a4e7a43a28ee77c04b5e4958",
-                "sha256:48f388d0d153350f378c7f7b41497a54ff1513c816bcbbcafe5b829e59b9ce5b",
-                "sha256:4df2af28d7bedc84fe45bd49bc35d710aede676e2a4cb7fc6d103a2adc8afe4d",
-                "sha256:4f01c9863da784558165f5d4d916093737a75203a5c5286fde60e503e4276c7a",
-                "sha256:7a38250f433cd41df7fcb763caa3ee9362777fdb4dc642b9a349721d2bf47404",
-                "sha256:8f79b5ff5ad9d3218afb1e7e20ea74da5f76943ee5edb7f76e56ec5161ec782b",
-                "sha256:956ba8701b4ffe91ba59665ed170a2ebbdc6fc0e40de5f6059195d9f2b33ca0e",
-                "sha256:a04386fb7bc85fab9cd51b6308633a3c271e3d0d3eae917eebab2fac6219b6d2",
-                "sha256:a95f4802d49faa6a674242e25bfeea6fc2acd915b5e5e29ac90a32b1139cae1c",
-                "sha256:adc0d980fd2760c9e5de537c28935cc32b9353baaf28e0814df417619c6c8c3b",
-                "sha256:aecbb1592b0188e030cb01f82d12556cf72e218280f621deed7d806afd2113f9",
-                "sha256:b12794f01d4cacfbd3177b9042198f3af1c856eedd0a98f10f141385c809a14b",
-                "sha256:c0764e72b36a3dc065c155e5b22f93df465da9c39af65516fe04ed3c68c92636",
-                "sha256:c33c0d32b8594fa647d2e01dbccc303478e16fdd7cf98652d5b3ed11aa5e5c99",
-                "sha256:cbaba590180cba88cb99a5f76f90808a624f18b169b90a4abb40c1fd8c19420e",
-                "sha256:d5a1bd0e9e2031465761dfa920c16b0065ad77321d8a8c1f5ee331021fda65e9"
-            ],
-            "markers": "python_version >= '3.6'",
-            "version": "==40.0.2"
-        },
         "debugpy": {
             "hashes": [
                 "sha256:0679b7e1e3523bd7d7869447ec67b59728675aadfc038550a63a362b63029d2c",
@@ -577,10 +552,10 @@
         },
         "fastjsonschema": {
             "hashes": [
-                "sha256:04fbecc94300436f628517b05741b7ea009506ce8f946d40996567c669318490",
-                "sha256:4a30d6315a68c253cfa8f963b9697246315aa3db89f98b97235e345dedfb0b8e"
+                "sha256:4b90b252628ca695280924d863fe37234eebadc29c5360d322571233dc9746e0",
+                "sha256:f4eeb8a77cef54861dbf7424ac8ce71306f12cbb086c45131bcba2c6a4f726e3"
             ],
-            "version": "==2.16.3"
+            "version": "==2.17.1"
         },
         "fqdn": {
             "hashes": [
@@ -591,11 +566,11 @@
         },
         "furo": {
             "hashes": [
-                "sha256:4ab2be254a2d5e52792d0ca793a12c35582dd09897228a6dd47885dabd5c9521",
-                "sha256:b99e7867a5cc833b2b34d7230631dd6558c7a29f93071fdbb5709634bb33c5a5"
+                "sha256:40e09fa17c6f4b22419d122e933089226dcdb59747b5b6c79363089827dea16f",
+                "sha256:594a8436ddfe0c071f3a9e9a209c314a219d8341f3f1af33fdf7c69544fab9e6"
             ],
             "index": "pypi",
-            "version": "==2023.3.27"
+            "version": "==2023.5.20"
         },
         "idna": {
             "hashes": [
@@ -623,26 +598,19 @@
         },
         "ipykernel": {
             "hashes": [
-                "sha256:1ae6047c1277508933078163721bbb479c3e7292778a04b4bacf0874550977d6",
-                "sha256:302558b81f1bc22dc259fb2a0c5c7cf2f4c0bdb21b50484348f7bafe7fb71421"
+                "sha256:1aba0ae8453e15e9bc6b24e497ef6840114afcdb832ae597f32137fa19d42a6f",
+                "sha256:77aeffab056c21d16f1edccdc9e5ccbf7d96eb401bd6703610a21be8b068aadc"
             ],
             "markers": "python_version >= '3.8'",
-            "version": "==6.22.0"
+            "version": "==6.23.1"
         },
         "ipython": {
             "hashes": [
-                "sha256:1c80d08f04144a1994cda25569eab07fbdc4989bd8d8793e3a4ff643065ccb51",
-                "sha256:9c8487ac18f330c8a683fc50ab6d7bc0fcf9ef1d7a9f6ce7926938261067b81f"
+                "sha256:7dff3fad32b97f6488e02f87b970f309d082f758d7b7fc252e3b19ee0e432dbb",
+                "sha256:ffca270240fbd21b06b2974e14a86494d6d29290184e788275f55e0b55914926"
             ],
             "markers": "python_version >= '3.9'",
-            "version": "==8.13.1"
-        },
-        "ipython-genutils": {
-            "hashes": [
-                "sha256:72dd37233799e619666c9f639a9da83c34013a73e8bbc79a7a6348d93c61fab8",
-                "sha256:eb2e116e75ecef9d4d228fdc66af54269afa26ab4463042e33785b887c628ba8"
-            ],
-            "version": "==0.2.0"
+            "version": "==8.13.2"
         },
         "isoduration": {
             "hashes": [
@@ -675,14 +643,6 @@
             "markers": "python_version >= '3.6'",
             "version": "==0.18.2"
         },
-        "jeepney": {
-            "hashes": [
-                "sha256:5efe48d255973902f6badc3ce55e2aa6c5c3b3bc642059ef3a91247bcfcc5806",
-                "sha256:c0a454ad016ca575060802ee4d590dd912e35c122fa04e70306de3d076cce755"
-            ],
-            "markers": "sys_platform == 'linux'",
-            "version": "==0.8.0"
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         "jinja2": {
             "hashes": [
                 "sha256:31351a702a408a9e7595a8fc6150fc3f43bb6bf7e319770cbc0db9df9437e852",
@@ -693,10 +653,10 @@
         },
         "json5": {
             "hashes": [
-                "sha256:1aa54b80b5e507dfe31d12b7743a642e2ffa6f70bf73b8e3d7d1d5fba83d99bd",
-                "sha256:4f1e196acc55b83985a51318489f345963c7ba84aa37607e49073066c562e99b"
+                "sha256:740c7f1b9e584a468dbb2939d8d458db3427f2c93ae2139d05f47e453eae964f",
+                "sha256:9ed66c3a6ca3510a976a9ef9b8c0787de24802724ab1860bc0153c7fdd589b02"
             ],
-            "version": "==0.9.11"
+            "version": "==0.9.14"
         },
         "jsonpointer": {
             "hashes": [
@@ -737,21 +697,21 @@
             "markers": "python_version >= '3.7'",
             "version": "==0.6.3"
         },
-        "jupyter-server": {
+        "jupyter-lsp": {
             "hashes": [
-                "sha256:9fde612791f716fd34d610cd939704a9639643744751ba66e7ee8fdc9cead07e",
-                "sha256:e6bc1e9e96d7c55b9ce9699ff6cb9a910581fe7349e27c40389acb67632e24c0"
+                "sha256:8ebbcb533adb41e5d635eb8fe82956b0aafbf0fd443b6c4bfa906edeeb8635a1",
+                "sha256:9e06b8b4f7dd50300b70dd1a78c0c3b0c3d8fa68e0f2d8a5d1fbab62072aca3f"
             ],
             "markers": "python_version >= '3.8'",
-            "version": "==2.5.0"
+            "version": "==2.2.0"
         },
-        "jupyter-server-fileid": {
+        "jupyter-server": {
             "hashes": [
-                "sha256:171538b7c7d08d11dbc57d4e6da196e0c258e4c2cd29249ef1e032bb423677f8",
-                "sha256:5b489c6fe6783c41174a728c7b81099608518387e53c3d53451a67f46a0cb7b0"
+                "sha256:19525a1515b5999618a91b3e99ec9f6869aa8c5ba73e0b6279fcda918b54ba36",
+                "sha256:ae4af349f030ed08dd78cb7ac1a03a92d886000380c9ea6283f3c542a81f4b06"
             ],
-            "markers": "python_version >= '3.7'",
-            "version": "==0.9.0"
+            "markers": "python_version >= '3.8'",
+            "version": "==2.6.0"
         },
         "jupyter-server-terminals": {
             "hashes": [
@@ -761,29 +721,13 @@
             "markers": "python_version >= '3.8'",
             "version": "==0.4.4"
         },
-        "jupyter-server-ydoc": {
-            "hashes": [
-                "sha256:969a3a1a77ed4e99487d60a74048dc9fa7d3b0dcd32e60885d835bbf7ba7be11",
-                "sha256:a6fe125091792d16c962cc3720c950c2b87fcc8c3ecf0c54c84e9a20b814526c"
-            ],
-            "markers": "python_version >= '3.7'",
-            "version": "==0.8.0"
-        },
-        "jupyter-ydoc": {
-            "hashes": [
-                "sha256:a3f670a69135e90493ffb91d6788efe2632bf42c6cc42a25f25c2e6eddd55a0e",
-                "sha256:d1a51c73ead6f6417bec0450f53c577a66abe8d43e9c2d8a1acaf7a17259f843"
-            ],
-            "markers": "python_version >= '3.7'",
-            "version": "==0.2.4"
-        },
         "jupyterlab": {
             "hashes": [
-                "sha256:373e9cfb8a72edd294be14f16662563a220cecf0fb26de7aab1af9a29b689b82",
-                "sha256:6aba0caa771697d02fbf409f9767b2fdb4ee32ce935940e3b9a0d5d48d994d0f"
+                "sha256:4dc3901f7bbfd4704c994b7a893a49955256abf57dba9831f4825e3f3165b8bb",
+                "sha256:f3ebd90e41d3ba1b8152c8eda2bd1a18e0de490192b4be1a6ec132517cfe43ef"
             ],
             "index": "pypi",
-            "version": "==3.6.3"
+            "version": "==4.0.1"
         },
         "jupyterlab-pygments": {
             "hashes": [
@@ -970,37 +914,29 @@
             "index": "pypi",
             "version": "==1.0.0"
         },
-        "nbclassic": {
-            "hashes": [
-                "sha256:aab53fa1bea084fb6ade5c538b011a4f070c69f88d72878a8e8fb356f152509f",
-                "sha256:e3c8b7de80046c4a36a74662a5e325386d345289906c618366d8154e03dc2322"
-            ],
-            "markers": "python_version >= '3.7'",
-            "version": "==0.5.6"
-        },
         "nbclient": {
             "hashes": [
-                "sha256:c817c0768c5ff0d60e468e017613e6eae27b6fa31e43f905addd2d24df60c125",
-                "sha256:d447f0e5a4cfe79d462459aec1b3dc5c2e9152597262be8ee27f7d4c02566a0d"
+                "sha256:25e861299e5303a0477568557c4045eccc7a34c17fc08e7959558707b9ebe548",
+                "sha256:f9b179cd4b2d7bca965f900a2ebf0db4a12ebff2f36a711cb66861e4ae158e55"
             ],
-            "markers": "python_full_version >= '3.7.0'",
-            "version": "==0.7.4"
+            "markers": "python_full_version >= '3.8.0'",
+            "version": "==0.8.0"
         },
         "nbconvert": {
             "hashes": [
-                "sha256:78685362b11d2e8058e70196fe83b09abed8df22d3e599cf271f4d39fdc48b9e",
-                "sha256:d2e95904666f1ff77d36105b9de4e0801726f93b862d5b28f69e93d99ad3b19c"
+                "sha256:51b6c77b507b177b73f6729dba15676e42c4e92bcb00edc8cc982ee72e7d89d7",
+                "sha256:af5064a9db524f9f12f4e8be7f0799524bd5b14c1adea37e34e83c95127cc818"
             ],
             "markers": "python_version >= '3.7'",
-            "version": "==7.3.1"
+            "version": "==7.4.0"
         },
         "nbformat": {
             "hashes": [
-                "sha256:46dac64c781f1c34dfd8acba16547024110348f9fc7eab0f31981c2a3dc48d1f",
-                "sha256:d910082bd3e0bffcf07eabf3683ed7dda0727a326c446eeb2922abe102e65162"
+                "sha256:8c8fa16d6d05062c26177754bfbfac22de644888e2ef69d27ad2a334cf2576e5",
+                "sha256:e98ebb6120c3efbafdee2a40af2a140cadee90bb06dd69a2a63d9551fcc7f976"
             ],
-            "markers": "python_version >= '3.7'",
-            "version": "==5.8.0"
+            "markers": "python_version >= '3.8'",
+            "version": "==5.9.0"
         },
         "nest-asyncio": {
             "hashes": [
@@ -1010,14 +946,6 @@
             "markers": "python_version >= '3.5'",
             "version": "==1.5.6"
         },
-        "notebook": {
-            "hashes": [
-                "sha256:517209568bd47261e2def27a140e97d49070602eea0d226a696f42a7f16c9a4e",
-                "sha256:dd17e78aefe64c768737b32bf171c1c766666a21cc79a44d37a1700771cab56f"
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@@ -1060,6 +988,14 @@
             "markers": "python_version >= '3.10'",
             "version": "==1.24.3"
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@@ -1070,34 +1006,34 @@
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@@ -1167,19 +1103,19 @@
         },
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+            "version": "==0.17.0"
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@@ -1214,6 +1150,7 @@
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@@ -1240,11 +1177,11 @@
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@@ -1358,86 +1295,86 @@
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@@ -1449,11 +1386,11 @@
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@@ -1489,19 +1426,11 @@
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@@ -1687,6 +1616,14 @@
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-                "sha256:c7ca64a2a97f708569dcabd55865915943e30267bf6d26c4d212d005951efe62",
-                "sha256:caf9b1feb69379d424a1d3d7c899b8e0389a3fb3131d39c3c03dcc3d4a93dbdc",
-                "sha256:cb68445414940efe547291340e91604c7b8379b60822678ef29f4fc2a0e11c62",
-                "sha256:cc8e5f38842a4b043c9592bfa9a740147ddb8fac2d7a5b7bf6d52466c090ec23",
-                "sha256:cd6f373dbf592ad83aaf95c16abebc8678928e49bd509ebd593259e1908345ae",
-                "sha256:d2da2a9e28dceab4832945a745cad507579f52b4d0c9e2f54ae156eb56875861",
-                "sha256:d373c6bb8e21d5f7ec0833b76fa1ab480086ada602ef5bbf4724a25a21a00b6a",
-                "sha256:d722d6a27230c1f395535da5cee6a9a16497c6343afd262c846090075c083009",
-                "sha256:db1ac7f2d1862eb4c448cf76183399d555a63dbe2452bafecb1c2f691e36d687",
-                "sha256:df78a0409dca11554a4b6442d7a8e61f762c3cfc78d55d98352392869a6b9ae0",
-                "sha256:e30fe2491d095c6d695a2c96257967fd3e2497f0f777030c8492d03c18d46e2a",
-                "sha256:e370ce076781adea161b04d2f666e8b4f89bc7e8927ef842fbb0283d3bfa73e0",
-                "sha256:ecd3cb0d13ac92e7b9235d1024dba9af0788161246f12dcf1f635d634ccb206a",
-                "sha256:ed0fd5265905cc7e23709479bc152d69f4972dec32fa322d20cb77f749707e78",
-                "sha256:f6d87d0c2e87990bc00c049742d36a5dbbb1510949459af17198728890ee748a",
-                "sha256:f7434c77cd23592973ed63341b8d337e6aebaba5ed40d7f22e2d43dfd0c3a56e",
-                "sha256:f8b67ae37af8aac6160fda66c0f73bcdf65c06da9022eb76192c3fc45cfab994",
-                "sha256:f8f238144a302f17eb26b122cad9382fcff5ec6653b8a562130b9a5e44010098",
-                "sha256:fa685f7e43ce490dfb1e392ac48f584b75cd21f05dc526c160d15308236ce8a0",
-                "sha256:fce5feb57f6231376eb10d1fb68c60da106ffa0b520b3129471c466eff0304cc",
-                "sha256:fdafb93bfd5532b13a53c4090675bcd31724160017ecc73e492dc1211bc0377a",
-                "sha256:fe70d0134fe2115c08866f0cac0eb5c0788093872b5026eb438a74e1ebafd659",
-                "sha256:ff3ddedaa95284f4f22a92b362f658f3d92f272d8c0fa009051bd5490c4d5a04"
-            ],
-            "version": "==0.5.9"
-        },
-        "ypy-websocket": {
-            "hashes": [
-                "sha256:491b2cc4271df4dde9be83017c15f4532b597dc43148472eb20c5aeb838a5b46",
-                "sha256:9049d5a7d61c26c2b5a39757c9ffcbe2274bf3553adeea8de7fe1c04671d4145"
-            ],
-            "markers": "python_version >= '3.7'",
-            "version": "==0.8.2"
-        },
         "zipp": {
             "hashes": [
                 "sha256:112929ad649da941c23de50f356a2b5570c954b65150642bccdd66bf194d224b",
@@ -1918,19 +1776,19 @@
         },
         "asgiref": {
             "hashes": [
-                "sha256:71e68008da809b957b7ee4b43dbccff33d1b23519fb8344e33f049897077afac",
-                "sha256:9567dfe7bd8d3c8c892227827c41cce860b368104c3431da67a0c5a65a949506"
+                "sha256:89b2ef2247e3b562a16eef663bc0e2e703ec6468e2fa8a5cd61cd449786d4f6e",
+                "sha256:9e0ce3aa93a819ba5b45120216b23878cf6e8525eb3848653452b4192b92afed"
             ],
             "markers": "python_version >= '3.7'",
-            "version": "==3.6.0"
+            "version": "==3.7.2"
         },
         "certifi": {
             "hashes": [
-                "sha256:35824b4c3a97115964b408844d64aa14db1cc518f6562e8d7261699d1350a9e3",
-                "sha256:4ad3232f5e926d6718ec31cfc1fcadfde020920e278684144551c91769c7bc18"
+                "sha256:0f0d56dc5a6ad56fd4ba36484d6cc34451e1c6548c61daad8c320169f91eddc7",
+                "sha256:c6c2e98f5c7869efca1f8916fed228dd91539f9f1b444c314c06eef02980c716"
             ],
             "markers": "python_version >= '3.6'",
-            "version": "==2022.12.7"
+            "version": "==2023.5.7"
         },
         "cffi": {
             "hashes": [
@@ -2084,44 +1942,44 @@
         },
         "cryptography": {
             "hashes": [
-                "sha256:05dc219433b14046c476f6f09d7636b92a1c3e5808b9a6536adf4932b3b2c440",
-                "sha256:0dcca15d3a19a66e63662dc8d30f8036b07be851a8680eda92d079868f106288",
-                "sha256:142bae539ef28a1c76794cca7f49729e7c54423f615cfd9b0b1fa90ebe53244b",
-                "sha256:3daf9b114213f8ba460b829a02896789751626a2a4e7a43a28ee77c04b5e4958",
-                "sha256:48f388d0d153350f378c7f7b41497a54ff1513c816bcbbcafe5b829e59b9ce5b",
-                "sha256:4df2af28d7bedc84fe45bd49bc35d710aede676e2a4cb7fc6d103a2adc8afe4d",
-                "sha256:4f01c9863da784558165f5d4d916093737a75203a5c5286fde60e503e4276c7a",
-                "sha256:7a38250f433cd41df7fcb763caa3ee9362777fdb4dc642b9a349721d2bf47404",
-                "sha256:8f79b5ff5ad9d3218afb1e7e20ea74da5f76943ee5edb7f76e56ec5161ec782b",
-                "sha256:956ba8701b4ffe91ba59665ed170a2ebbdc6fc0e40de5f6059195d9f2b33ca0e",
-                "sha256:a04386fb7bc85fab9cd51b6308633a3c271e3d0d3eae917eebab2fac6219b6d2",
-                "sha256:a95f4802d49faa6a674242e25bfeea6fc2acd915b5e5e29ac90a32b1139cae1c",
-                "sha256:adc0d980fd2760c9e5de537c28935cc32b9353baaf28e0814df417619c6c8c3b",
-                "sha256:aecbb1592b0188e030cb01f82d12556cf72e218280f621deed7d806afd2113f9",
-                "sha256:b12794f01d4cacfbd3177b9042198f3af1c856eedd0a98f10f141385c809a14b",
-                "sha256:c0764e72b36a3dc065c155e5b22f93df465da9c39af65516fe04ed3c68c92636",
-                "sha256:c33c0d32b8594fa647d2e01dbccc303478e16fdd7cf98652d5b3ed11aa5e5c99",
-                "sha256:cbaba590180cba88cb99a5f76f90808a624f18b169b90a4abb40c1fd8c19420e",
-                "sha256:d5a1bd0e9e2031465761dfa920c16b0065ad77321d8a8c1f5ee331021fda65e9"
+                "sha256:0ddaee209d1cf1f180f1efa338a68c4621154de0afaef92b89486f5f96047c55",
+                "sha256:14754bcdae909d66ff24b7b5f166d69340ccc6cb15731670435efd5719294895",
+                "sha256:344c6de9f8bda3c425b3a41b319522ba3208551b70c2ae00099c205f0d9fd3be",
+                "sha256:34d405ea69a8b34566ba3dfb0521379b210ea5d560fafedf9f800a9a94a41928",
+                "sha256:3680248309d340fda9611498a5319b0193a8dbdb73586a1acf8109d06f25b92d",
+                "sha256:3c5ef25d060c80d6d9f7f9892e1d41bb1c79b78ce74805b8cb4aa373cb7d5ec8",
+                "sha256:4ab14d567f7bbe7f1cdff1c53d5324ed4d3fc8bd17c481b395db224fb405c237",
+                "sha256:5c1f7293c31ebc72163a9a0df246f890d65f66b4a40d9ec80081969ba8c78cc9",
+                "sha256:6b71f64beeea341c9b4f963b48ee3b62d62d57ba93eb120e1196b31dc1025e78",
+                "sha256:7d92f0248d38faa411d17f4107fc0bce0c42cae0b0ba5415505df72d751bf62d",
+                "sha256:8362565b3835ceacf4dc8f3b56471a2289cf51ac80946f9087e66dc283a810e0",
+                "sha256:84a165379cb9d411d58ed739e4af3396e544eac190805a54ba2e0322feb55c46",
+                "sha256:88ff107f211ea696455ea8d911389f6d2b276aabf3231bf72c8853d22db755c5",
+                "sha256:9f65e842cb02550fac96536edb1d17f24c0a338fd84eaf582be25926e993dde4",
+                "sha256:a4fc68d1c5b951cfb72dfd54702afdbbf0fb7acdc9b7dc4301bbf2225a27714d",
+                "sha256:b7f2f5c525a642cecad24ee8670443ba27ac1fab81bba4cc24c7b6b41f2d0c75",
+                "sha256:b846d59a8d5a9ba87e2c3d757ca019fa576793e8758174d3868aecb88d6fc8eb",
+                "sha256:bf8fc66012ca857d62f6a347007e166ed59c0bc150cefa49f28376ebe7d992a2",
+                "sha256:f5d0bf9b252f30a31664b6f64432b4730bb7038339bd18b1fafe129cfc2be9be"
             ],
-            "markers": "python_version >= '3.6'",
-            "version": "==40.0.2"
+            "markers": "python_version >= '3.7'",
+            "version": "==41.0.0"
         },
         "deprecated": {
             "hashes": [
-                "sha256:43ac5335da90c31c24ba028af536a91d41d53f9e6901ddb021bcc572ce44e38d",
-                "sha256:64756e3e14c8c5eea9795d93c524551432a0be75629f8f29e67ab8caf076c76d"
+                "sha256:6fac8b097794a90302bdbb17b9b815e732d3c4720583ff1b198499d78470466c",
+                "sha256:e5323eb936458dccc2582dc6f9c322c852a775a27065ff2b0c4970b9d53d01b3"
             ],
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==1.2.13"
+            "version": "==1.2.14"
         },
         "django": {
             "hashes": [
-                "sha256:ad33ed68db9398f5dfb33282704925bce044bef4261cd4fb59e4e7f9ae505a78",
-                "sha256:c36e2ab12824e2ac36afa8b2515a70c53c7742f0d6eaefa7311ec379558db997"
+                "sha256:066b6debb5ac335458d2a713ed995570536c8b59a580005acb0732378d5eb1ee",
+                "sha256:7efa6b1f781a6119a10ac94b4794ded90db8accbe7802281cd26f8664ffed59c"
             ],
             "index": "pypi",
-            "version": "==4.2"
+            "version": "==4.2.1"
         },
         "django-filter": {
             "hashes": [
@@ -2133,11 +1991,11 @@
         },
         "django-oauth-toolkit": {
             "hashes": [
-                "sha256:46890decb24a34e2a5382debeaf7752e50d90b7a11716cf2a9fd067097ec0963",
-                "sha256:abd85c74af525a62365ec2049113e73a2ff8b46ef906e7104a7ba968ef02a11d"
+                "sha256:47dfeab97ec21496f307c2cf3468e64ca08897fa499bf3104366d32005c9111d",
+                "sha256:cf1cb1a5744672e6bd7d66b4a110a463bcef9cf5ed4f27e29682cc6a4d0df1ed"
             ],
             "index": "pypi",
-            "version": "==2.2.0"
+            "version": "==2.3.0"
         },
         "graphene": {
             "hashes": [
@@ -2149,11 +2007,11 @@
         },
         "graphene-django": {
             "hashes": [
-                "sha256:60d3ff80ef56ff04bdbee25def56a0b682132f67bbdc1d46cb3e1bfba1528944",
-                "sha256:d12f60563336b6f12a73acc7dc7bed366262ae0bd796b01119037076c170f20c"
+                "sha256:6df689056b2d3599e8ca5c96e7cd185927df307b5d3e817fdeedd00d40a52bbc",
+                "sha256:7d9215e952849d7c97984be0e4cfd0c35c32407bd96eedd13231a22b8f6e8e8a"
             ],
             "index": "pypi",
-            "version": "==3.0.1"
+            "version": "==3.1.1"
         },
         "graphql-core": {
             "hashes": [
@@ -2181,10 +2039,10 @@
         },
         "jwcrypto": {
             "hashes": [
-                "sha256:80a35e9ed1b3b2c43ce03d92c5d48e6d0b6647e2aa2618e4963448923d78a37b"
+                "sha256:2c1dc51cf8e38ddf324795dfe9426dee9dd46caf47f535ccbc18781fba810b8d"
             ],
             "markers": "python_version >= '3.6'",
-            "version": "==1.4.2"
+            "version": "==1.5.0"
         },
         "oauthlib": {
             "hashes": [
@@ -2209,11 +2067,11 @@
         },
         "requests": {
             "hashes": [
-                "sha256:e8f3c9be120d3333921d213eef078af392fba3933ab7ed2d1cba3b56f2568c3b",
-                "sha256:f2e34a75f4749019bb0e3effb66683630e4ffeaf75819fb51bebef1bf5aef059"
+                "sha256:58cd2187c01e70e6e26505bca751777aa9f2ee0b7f4300988b709f44e013003f",
+                "sha256:942c5a758f98d790eaed1a29cb6eefc7ffb0d1cf7af05c3d2791656dbd6ad1e1"
             ],
             "markers": "python_version >= '3.7'",
-            "version": "==2.29.0"
+            "version": "==2.31.0"
         },
         "six": {
             "hashes": [
@@ -2240,11 +2098,11 @@
         },
         "urllib3": {
             "hashes": [
-                "sha256:8a388717b9476f934a21484e8c8e61875ab60644d29b9b39e11e4b9dc1c6b305",
-                "sha256:aa751d169e23c7479ce47a0cb0da579e3ede798f994f5816a74e4f4500dcea42"
+                "sha256:61717a1095d7e155cdb737ac7bb2f4324a858a1e2e6466f6d03ff630ca68d3cc",
+                "sha256:d055c2f9d38dc53c808f6fdc8eab7360b6fdbbde02340ed25cfbcd817c62469e"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5'",
-            "version": "==1.26.15"
+            "markers": "python_version >= '3.7'",
+            "version": "==2.0.2"
         },
         "wrapt": {
             "hashes": [
diff --git a/django_ledger/__init__.py b/django_ledger/__init__.py
index 1192b566..6c95279b 100644
--- a/django_ledger/__init__.py
+++ b/django_ledger/__init__.py
@@ -9,7 +9,7 @@
 default_app_config = 'django_ledger.apps.DjangoLedgerConfig'
 
 """Django Ledger"""
-__version__ = '0.5.3.1'
+__version__ = '0.5.3.2'
 __license__ = 'GPLv3 License'
 
 __author__ = 'Miguel Sanda'
diff --git a/django_ledger/models/bill.py b/django_ledger/models/bill.py
index ec801bf1..077b1c1c 100644
--- a/django_ledger/models/bill.py
+++ b/django_ledger/models/bill.py
@@ -35,8 +35,9 @@
 from django.utils.translation import gettext_lazy as _
 
 from django_ledger.models.entity import EntityModel
-from django_ledger.models.items import ItemTransactionModelQuerySet, ItemTransactionModel
-from django_ledger.models.mixins import CreateUpdateMixIn, AccrualMixIn, MarkdownNotesMixIn, PaymentTermsMixIn
+from django_ledger.models.items import ItemTransactionModelQuerySet, ItemTransactionModel, ItemModel, ItemModelQuerySet
+from django_ledger.models.mixins import (CreateUpdateMixIn, AccrualMixIn, MarkdownNotesMixIn,
+                                         PaymentTermsMixIn, ItemizeMixIn)
 from django_ledger.models.utils import lazy_loader
 from django_ledger.settings import (DJANGO_LEDGER_DOCUMENT_NUMBER_PADDING, DJANGO_LEDGER_BILL_NUMBER_PREFIX)
 
@@ -242,6 +243,7 @@ def for_entity(self, entity_slug, user_model) -> BillModelQuerySet:
 
 
 class BillModelAbstract(AccrualMixIn,
+                        ItemizeMixIn,
                         PaymentTermsMixIn,
                         MarkdownNotesMixIn,
                         CreateUpdateMixIn):
@@ -488,19 +490,29 @@ def configure(self,
 
         return self.ledger, self
 
-    # State..
-    def get_migrate_state_desc(self) -> str:
-        """
-        Description used when migrating transactions into the LedgerModel.
+    # ### ItemizeMixIn implementation START...
+    def can_migrate_itemtxs(self) -> bool:
+        return self.is_draft()
 
-        Returns
-        _______
-        str
-            Description as a string.
-        """
-        return f'Bill {self.bill_number} account adjustment.'
+    def migrate_itemtxs(self, itemtxs: Dict, operation: str, commit: bool = False):
+        itemtxs_batch = super().migrate_itemtxs(itemtxs=itemtxs, commit=commit, operation=operation)
+        self.update_amount_due(itemtxs_qs=itemtxs_batch)
+        self.get_state(commit=True)
+
+        if commit:
+            self.save(update_fields=['amount_due',
+                                     'amount_receivable',
+                                     'amount_unearned',
+                                     'amount_earned',
+                                     'updated'])
+        return itemtxs_batch
+
+    def get_item_model_qs(self) -> ItemModelQuerySet:
+        return ItemModel.objects.filter(
+            entity_id__exact=self.ledger.entity_id
+        ).bills()
 
-    def validate_item_transaction_qs(self, queryset: Union[ItemTransactionModelQuerySet, List[ItemTransactionModel]]):
+    def validate_itemtxs_qs(self, queryset: Union[ItemTransactionModelQuerySet, List[ItemTransactionModel]]):
         """
         Validates that the entire ItemTransactionModelQuerySet is bound to the BillModel.
 
@@ -518,7 +530,7 @@ def validate_item_transaction_qs(self, queryset: Union[ItemTransactionModelQuery
     def get_itemtxs_data(self,
                          queryset: Optional[ItemTransactionModelQuerySet] = None,
                          aggregate_on_db: bool = False,
-                         ) -> Tuple[ItemTransactionModelQuerySet, Dict]:
+                         lazy_agg: bool = False) -> Tuple[ItemTransactionModelQuerySet, Dict]:
         """
         Fetches the BillModel Items and aggregates the QuerySet.
 
@@ -539,7 +551,7 @@ def get_itemtxs_data(self,
                 'po_model',
                 'bill_model')
         else:
-            self.validate_item_transaction_qs(queryset)
+            self.validate_itemtxs_qs(queryset)
 
         if aggregate_on_db and isinstance(queryset, ItemTransactionModelQuerySet):
             return queryset, queryset.aggregate(
@@ -549,7 +561,21 @@ def get_itemtxs_data(self,
         return queryset, {
             'total_amount__sum': sum(i.total_amount for i in queryset),
             'total_items': len(queryset)
-        }
+        } if not lazy_agg else None
+
+    # ### ItemizeMixIn implementation END...
+
+    # State..
+    def get_migrate_state_desc(self) -> str:
+        """
+        Description used when migrating transactions into the LedgerModel.
+
+        Returns
+        _______
+        str
+            Description as a string.
+        """
+        return f'Bill {self.bill_number} account adjustment.'
 
     def get_migration_data(self,
                            queryset: Optional[ItemTransactionModelQuerySet] = None) -> ItemTransactionModelQuerySet:
@@ -565,7 +591,7 @@ def get_migration_data(self,
         if not queryset:
             queryset = self.itemtransactionmodel_set.all()
         else:
-            self.validate_item_transaction_qs(queryset)
+            self.validate_itemtxs_qs(queryset)
 
         return queryset.order_by('item_model__expense_account__uuid',
                                  'entity_unit__uuid',
@@ -601,7 +627,6 @@ def update_amount_due(self,
         self.amount_due = round(itemtxs_agg['total_amount__sum'], 2)
         return itemtxs_qs
 
-    # State
     def is_draft(self) -> bool:
         """
         Checks if the BillModel is in Draft status.
@@ -1014,7 +1039,7 @@ def mark_as_review(self,
         if not itemtxs_qs:
             itemtxs_qs = self.itemtransactionmodel_set.all()
         else:
-            self.validate_item_transaction_qs(queryset=itemtxs_qs)
+            self.validate_itemtxs_qs(queryset=itemtxs_qs)
 
         if not itemtxs_qs.count():
             raise BillModelValidationError(message=f'Cannot review a {self.__class__.__name__} without items...')
@@ -1117,7 +1142,7 @@ def mark_as_approved(self,
             )
         self.bill_status = self.BILL_STATUS_APPROVED
         self.date_approved = localdate() if not date_approved else date_approved
-        self.new_state(commit=True)
+        self.get_state(commit=True)
         self.clean()
         if commit:
             self.save(update_fields=[
@@ -1226,13 +1251,13 @@ def mark_as_paid(self,
                 f'Cannot pay {self.__class__.__name__} before approved date {self.date_approved}.')
 
         self.bill_status = self.BILL_STATUS_PAID
-        self.new_state(commit=True)
+        self.get_state(commit=True)
         self.clean()
 
         if not itemtxs_qs:
             itemtxs_qs = self.itemtransactionmodel_set.all()
         else:
-            self.validate_item_transaction_qs(queryset=itemtxs_qs)
+            self.validate_itemtxs_qs(queryset=itemtxs_qs)
 
         if commit:
             self.save(update_fields=[
diff --git a/django_ledger/models/entity.py b/django_ledger/models/entity.py
index e70df187..3c0569b6 100644
--- a/django_ledger/models/entity.py
+++ b/django_ledger/models/entity.py
@@ -1234,6 +1234,10 @@ def create_bill(self,
 
         return bill_model
 
+    def get_items_for_bill(self) -> ItemModelQuerySet:
+        item_model_qs: ItemModelQuerySet = self.itemmodel_set.all()
+        return item_model_qs.select_related('uom', 'entity').bills()
+
     # ### INVOICE MANAGEMENT ####
     def get_invoices(self):
         """
diff --git a/django_ledger/models/estimate.py b/django_ledger/models/estimate.py
index 8c74742b..2d29a681 100644
--- a/django_ledger/models/estimate.py
+++ b/django_ledger/models/estimate.py
@@ -16,7 +16,7 @@
 from datetime import date
 from decimal import Decimal
 from string import ascii_uppercase, digits
-from typing import Union, Optional, List
+from typing import Union, Optional, List, Dict
 from uuid import uuid4, UUID
 
 from django.contrib.auth import get_user_model
@@ -33,8 +33,8 @@
 from django_ledger.models import BillModelQuerySet, InvoiceModelQuerySet
 from django_ledger.models.customer import CustomerModel
 from django_ledger.models.entity import EntityModel, EntityStateModel
-from django_ledger.models.items import ItemTransactionModelQuerySet, ItemTransactionModel
-from django_ledger.models.mixins import CreateUpdateMixIn, MarkdownNotesMixIn
+from django_ledger.models.items import ItemTransactionModelQuerySet, ItemTransactionModel, ItemModelQuerySet, ItemModel
+from django_ledger.models.mixins import CreateUpdateMixIn, MarkdownNotesMixIn, ItemizeMixIn
 from django_ledger.models.purchase_order import PurchaseOrderModelQuerySet
 from django_ledger.settings import DJANGO_LEDGER_DOCUMENT_NUMBER_PADDING, DJANGO_LEDGER_ESTIMATE_NUMBER_PREFIX
 
@@ -102,6 +102,9 @@ def estimates(self):
         """
         return self.not_approved()
 
+    def draft(self):
+        return self.filter(status__exact=EstimateModelAbstract.CONTRACT_STATUS_DRAFT)
+
 
 class EstimateModelManager(models.Manager):
     """
@@ -147,7 +150,9 @@ def for_entity(self, entity_slug: Union[EntityModel, str], user_model):
         )
 
 
-class EstimateModelAbstract(CreateUpdateMixIn, MarkdownNotesMixIn):
+class EstimateModelAbstract(CreateUpdateMixIn,
+                            ItemizeMixIn,
+                            MarkdownNotesMixIn):
     """
     This is the main abstract class which the EstimateModel database will inherit from.
     The EstimateModel inherits functionality from the following MixIns:
@@ -1000,17 +1005,58 @@ def get_mark_as_void_message(self):
     def get_html_id(self):
         return f'djl-customer-estimate-id-{self.uuid}'
 
-    # ItemThroughModels...
+    # ### ItemizeMixIn implementation START...
+    def can_migrate_itemtxs(self) -> bool:
+        return self.is_draft()
+
+    def migrate_itemtxs(self, itemtxs: Dict, operation: str, commit: bool = False):
+        itemtxs_batch = super().migrate_itemtxs(itemtxs=itemtxs, commit=commit, operation=operation)
+        self.update_state(itemtxs_qs=itemtxs_batch)
+        self.clean()
+
+        if commit:
+            self.save(update_fields=[
+                'revenue_estimate',
+                'labor_estimate',
+                'equipment_estimate',
+                'material_estimate',
+                'other_estimate',
+                'updated'
+            ])
+
+        return itemtxs_batch
+
+    def get_item_model_qs(self) -> ItemModelQuerySet:
+        return ItemModel.objects.filter(
+            entity_id__exact=self.entity_id
+        ).estimates()
+
+    def validate_itemtxs_qs(self, queryset: Union[ItemTransactionModelQuerySet, List[ItemTransactionModel]]):
+        """
+        Validates that the entire ItemTransactionModelQuerySet is bound to the EstimateModel.
+
+        Parameters
+        ----------
+        queryset: ItemTransactionModelQuerySet or list of ItemTransactionModel.
+            ItemTransactionModelQuerySet to validate.
+        """
+        valid = all([
+            i.ce_model_id == self.uuid for i in queryset
+        ])
+        if not valid:
+            raise EstimateModelValidationError(f'Invalid queryset. All items must be assigned to Bill {self.uuid}')
+
     def get_itemtxs_data(self,
-                         itemtxs_qs: Optional[Union[ItemTransactionModelQuerySet, List[ItemTransactionModel]]] = None
-                         ) -> ItemTransactionModelQuerySet:
-        # todo: this needs to return an aggregate for consistency...
+                         queryset: Optional[Union[ItemTransactionModelQuerySet, List[ItemTransactionModel]]] = None,
+                         aggregate_on_db: bool = False,
+                         lazy_agg: bool = False):
+
         """
         Returns all ItemTransactionModels associated with the EstimateModel and a total aggregate.
 
         Parameters
         ----------
-        itemtxs_qs: ItemTransactionModelQuerySet
+        queryset: ItemTransactionModelQuerySet
             ItemTransactionModelQuerySet to use. Avoids additional DB query if provided.
             Validated if provided.
 
@@ -1018,13 +1064,14 @@ def get_itemtxs_data(self,
         -------
         ItemTransactionModelQuerySet
         """
-        if not itemtxs_qs:
-            itemtxs_qs = self.itemtransactionmodel_set.select_related('item_model').all()
+        if not queryset:
+            queryset = self.itemtransactionmodel_set.select_related('item_model').all()
         else:
-            self.validate_item_transaction_qs(itemtxs_qs)
-
-        return itemtxs_qs
+            self.validate_item_transaction_qs(queryset)
+        # todo: this needs to return an aggregate for consistency...
+        return queryset, None
 
+    # ### ItemizeMixIn implementation END...
     def get_itemtxs_annotation(self, itemtxs_qs: Optional[ItemTransactionModelQuerySet] = None):
         """
         Gets an annotated ItemTransactionModelQuerySet with additional average unit cost & revenue.
@@ -1041,7 +1088,7 @@ def get_itemtxs_annotation(self, itemtxs_qs: Optional[ItemTransactionModelQueryS
         tuple
             The original ItemTransactionModelQuerySet and the annotated ItemTransactionModelQuerySet.
         """
-        itemtxs_qs = self.get_itemtxs_data(itemtxs_qs)
+        itemtxs_qs, _ = self.get_itemtxs_data(itemtxs_qs)
         return itemtxs_qs, itemtxs_qs.values(
             'item_model_id', 'item_model__name'
         ).annotate(
@@ -1071,7 +1118,7 @@ def update_revenue_estimate(self, itemtxs_qs: Optional[ItemTransactionModelQuery
         commit: bool
             If True, the new revenue estimate will be committed into the DB.
         """
-        itemtxs_qs = self.get_itemtxs_data(itemtxs_qs)
+        itemtxs_qs, _ = self.get_itemtxs_data(itemtxs_qs)
         self.revenue_estimate = sum(i.ce_revenue_estimate for i in itemtxs_qs)
 
         if commit:
@@ -1092,7 +1139,7 @@ def update_cost_estimate(self, itemtxs_qs: Optional[ItemTransactionModelQuerySet
         commit: bool
             If True, the new revenue estimate will be committed into the DB.
         """
-        itemtxs_qs = self.get_itemtxs_data(itemtxs_qs=itemtxs_qs)
+        itemtxs_qs, _ = self.get_itemtxs_data(queryset=itemtxs_qs)
         estimates = {
             'labor': sum(a.ce_cost_estimate for a in itemtxs_qs if a.item_model.is_labor()),
             'material': sum(a.ce_cost_estimate for a in itemtxs_qs if a.item_model.is_material()),
@@ -1119,7 +1166,7 @@ def update_cost_estimate(self, itemtxs_qs: Optional[ItemTransactionModelQuerySet
 
     def update_state(self,
                      itemtxs_qs: Optional[Union[ItemTransactionModelQuerySet, List[ItemTransactionModel]]] = None):
-        itemtxs_qs = self.get_itemtxs_data(itemtxs_qs=itemtxs_qs)
+        itemtxs_qs, _ = self.get_itemtxs_data(queryset=itemtxs_qs)
         self.update_cost_estimate(itemtxs_qs)
         self.update_revenue_estimate(itemtxs_qs)
 
diff --git a/django_ledger/models/invoice.py b/django_ledger/models/invoice.py
index 13396574..971374de 100644
--- a/django_ledger/models/invoice.py
+++ b/django_ledger/models/invoice.py
@@ -28,16 +28,17 @@
 from django.contrib.auth import get_user_model
 from django.core.exceptions import ValidationError, ObjectDoesNotExist
 from django.db import models, transaction, IntegrityError
-from django.db.models import Q, Sum, F
+from django.db.models import Q, Sum, F, Count
 from django.db.models.signals import post_delete, pre_save
 from django.shortcuts import get_object_or_404
 from django.urls import reverse
 from django.utils.timezone import localdate
 from django.utils.translation import gettext_lazy as _
 
-from django_ledger.models import lazy_loader, ItemTransactionModelQuerySet
+from django_ledger.models import lazy_loader, ItemTransactionModelQuerySet, ItemModelQuerySet, ItemModel
 from django_ledger.models.entity import EntityModel
-from django_ledger.models.mixins import CreateUpdateMixIn, AccrualMixIn, MarkdownNotesMixIn, PaymentTermsMixIn
+from django_ledger.models.mixins import CreateUpdateMixIn, AccrualMixIn, MarkdownNotesMixIn, PaymentTermsMixIn, \
+    ItemizeMixIn
 from django_ledger.settings import DJANGO_LEDGER_DOCUMENT_NUMBER_PADDING, DJANGO_LEDGER_INVOICE_NUMBER_PREFIX
 
 UserModel = get_user_model()
@@ -202,6 +203,7 @@ def for_entity_unpaid(self, entity_slug, user_model):
 
 
 class InvoiceModelAbstract(AccrualMixIn,
+                           ItemizeMixIn,
                            PaymentTermsMixIn,
                            MarkdownNotesMixIn,
                            CreateUpdateMixIn):
@@ -439,18 +441,30 @@ def configure(self,
                 self.save()
         return self.ledger, self
 
-    def get_migrate_state_desc(self):
-        """
-        Description used when migrating transactions into the LedgerModel.
+    # ### ItemizeMixIn implementation START...
 
-        Returns
-        _______
-        str
-            Description as a string.
-        """
-        return f'Invoice {self.invoice_number} account adjustment.'
+    def can_migrate_itemtxs(self) -> bool:
+        return self.is_draft()
+
+    def migrate_itemtxs(self, itemtxs: Dict, operation: str, commit: bool = False):
+        itemtxs_batch = super().migrate_itemtxs(itemtxs=itemtxs, commit=commit, operation=operation)
+        self.update_amount_due(itemtxs_qs=itemtxs_batch)
+        self.get_state(commit=True)
+
+        if commit:
+            self.save(update_fields=['amount_due',
+                                     'amount_receivable',
+                                     'amount_unearned',
+                                     'amount_earned',
+                                     'updated'])
+        return itemtxs_batch
+
+    def get_item_model_qs(self) -> ItemModelQuerySet:
+        return ItemModel.objects.filter(
+            entity_id__exact=self.ledger.entity_id
+        ).invoices()
 
-    def validate_item_transaction_qs(self, queryset: ItemTransactionModelQuerySet):
+    def validate_itemtxs_qs(self, queryset: ItemTransactionModelQuerySet):
         """
         Validates that the entire ItemTransactionModelQuerySet is bound to the InvoiceModel.
 
@@ -466,7 +480,10 @@ def validate_item_transaction_qs(self, queryset: ItemTransactionModelQuerySet):
             raise InvoiceModelValidationError(f'Invalid queryset. All items must be assigned to Invoice {self.uuid}')
 
     def get_itemtxs_data(self,
-                         queryset: ItemTransactionModelQuerySet = None) -> Tuple[ItemTransactionModelQuerySet, Dict]:
+                         queryset: ItemTransactionModelQuerySet = None,
+                         aggregate_on_db: bool = False,
+                         lazy_agg: bool = False,
+                         ) -> Tuple[ItemTransactionModelQuerySet, Dict]:
         """
         Fetches the InvoiceModel Items and aggregates the QuerySet.
 
@@ -488,12 +505,31 @@ def get_itemtxs_data(self,
                 'invoice_model'
             )
         else:
-            self.validate_item_transaction_qs(queryset)
+            self.validate_itemtxs_qs(queryset)
+
+        if aggregate_on_db and isinstance(queryset, ItemTransactionModelQuerySet):
+            return queryset, queryset.aggregate(
+                total_amount__sum=Sum('total_amount'),
+                total_items=Count('uuid')
+            )
 
         return queryset, {
             'total_amount__sum': sum(i.total_amount for i in queryset),
             'total_items': len(queryset)
-        }
+        } if not lazy_agg else None
+
+    # ### ItemizeMixIn implementation END...
+
+    def get_migrate_state_desc(self):
+        """
+        Description used when migrating transactions into the LedgerModel.
+
+        Returns
+        _______
+        str
+            Description as a string.
+        """
+        return f'Invoice {self.invoice_number} account adjustment.'
 
     def get_migration_data(self,
                            queryset: Optional[ItemTransactionModelQuerySet] = None) -> ItemTransactionModelQuerySet:
@@ -509,7 +545,7 @@ def get_migration_data(self,
         if not queryset:
             queryset = self.itemtransactionmodel_set.all()
         else:
-            self.validate_item_transaction_qs(queryset)
+            self.validate_itemtxs_qs(queryset)
 
         return queryset.select_related('item_model').order_by('item_model__earnings_account__uuid',
                                                               'entity_unit__uuid',
@@ -1107,7 +1143,7 @@ def mark_as_paid(self,
         if self.date_paid > localdate():
             raise InvoiceModelValidationError(f'Cannot pay {self.__class__.__name__} in the future.')
 
-        self.new_state(commit=True)
+        self.get_state(commit=True)
         self.invoice_status = self.INVOICE_STATUS_PAID
         self.clean()
 
diff --git a/django_ledger/models/items.py b/django_ledger/models/items.py
index 9200c89e..a2bfe5ba 100644
--- a/django_ledger/models/items.py
+++ b/django_ledger/models/items.py
@@ -264,6 +264,32 @@ def inventory_all(self):
             )
         )
 
+    def bills(self):
+        """
+        Filters the QuerySet to ItemModels that are eligible only for bills..
+
+        Returns
+        -------
+        ItemModelQuerySet
+            A Filtered ItemModelQuerySet.
+        """
+        return self.filter(
+            (
+                    Q(is_product_or_service=False) &
+                    Q(for_inventory=False)
+            ) |
+            Q(for_inventory=True)
+        )
+
+    def invoices(self):
+        return self.filter(is_product_or_service=True)
+
+    def estimates(self):
+        return self.invoices()
+
+    def purchase_orders(self):
+        return self.inventory_all()
+
 
 class ItemModelManager(models.Manager):
     """
@@ -480,6 +506,9 @@ class ItemModelAbstract(CreateUpdateMixIn):
     uuid = models.UUIDField(default=uuid4, editable=False, primary_key=True)
     name = models.CharField(max_length=100, verbose_name=_('Item Name'))
 
+    # todo: rename this and remove 'id' from it.
+    item_id = models.CharField(max_length=50, blank=True, null=True, verbose_name=_('Internal ID'))
+    item_number = models.CharField(max_length=30, editable=False, verbose_name=_('Item Number'))
     item_role = models.CharField(max_length=10, choices=ITEM_ROLE_CHOICES, null=True, blank=True)
     item_type = models.CharField(max_length=1, choices=ITEM_TYPE_CHOICES, null=True, blank=True)
 
@@ -490,9 +519,6 @@ class ItemModelAbstract(CreateUpdateMixIn):
     sku = models.CharField(max_length=50, blank=True, null=True, verbose_name=_('SKU Code'))
     upc = models.CharField(max_length=50, blank=True, null=True, verbose_name=_('UPC Code'))
 
-    # todo: rename this and remove 'id' from it.
-    item_id = models.CharField(max_length=50, blank=True, null=True, verbose_name=_('Internal ID'))
-    item_number = models.CharField(max_length=30, editable=False, verbose_name=_('Item Number'))
     is_active = models.BooleanField(default=True, verbose_name=_('Is Active'))
 
     default_amount = models.DecimalField(max_digits=20,
@@ -1368,4 +1394,4 @@ class ItemTransactionModel(ItemTransactionModelAbstract):
 class ItemModel(ItemModelAbstract):
     """
     Base ItemModel from Abstract.
-    """
\ No newline at end of file
+    """
diff --git a/django_ledger/models/mixins.py b/django_ledger/models/mixins.py
index 03bd80c8..e4699540 100644
--- a/django_ledger/models/mixins.py
+++ b/django_ledger/models/mixins.py
@@ -13,7 +13,7 @@
 from datetime import timedelta, date, datetime
 from decimal import Decimal
 from itertools import groupby
-from typing import Optional, Union, Dict
+from typing import Optional, Union, Dict, List
 from uuid import UUID
 
 from django.conf import settings
@@ -682,7 +682,7 @@ def migrate_state(self,
             }
 
             if not void:
-                new_state = self.new_state(commit=commit)
+                new_state = self.get_state(commit=commit)
             else:
                 new_state = self.void_state(commit=commit)
 
@@ -818,7 +818,7 @@ def void_state(self, commit: bool = False) -> Dict:
             self.update_state(void_state)
         return void_state
 
-    def new_state(self, commit: bool = False):
+    def get_state(self, commit: bool = False):
         """
         Determines the new state of the financial instrument based on progress.
 
@@ -852,7 +852,7 @@ def update_state(self, state: Optional[Dict] = None):
             Optional user provided state to use.
         """
         if not state:
-            state = self.new_state()
+            state = self.get_state()
         self.amount_paid = abs(state['amount_paid'])
         self.amount_receivable = state['amount_receivable']
         self.amount_unearned = state['amount_unearned']
@@ -1190,3 +1190,174 @@ def send_log(self, msg, level, force):
         if self.LOGGER_BYPASS_DEBUG or settings.DEBUG or force:
             logger = self.get_logger()
             logger.log(msg=msg, level=level)
+
+
+class ItemTransactionQuerySet:
+    pass
+
+
+class ItemizeError(ValidationError):
+    pass
+
+
+class ItemizeMixIn:
+    ITEMIZE_APPEND = 'append'
+    ITEMIZE_REPLACE = 'replace'
+    ITEMIZE_UPDATE = 'update'
+
+    def get_item_model_qs(self):
+        """
+        Fetches the ItemModelQuerySet eligible to itemize.
+
+        Returns
+        -------
+        ItemModelQuerySet
+        """
+        raise NotImplementedError()
+
+    def get_itemtxs_data(self, queryset=None, aggregate_on_db: bool = False, lazy_agg: bool = False):
+        """
+        Fetches the ItemTransactionModelQuerySet associated with the model.
+
+        Parameters
+        ----------
+        queryset: ItemTransactionModelQuerySet
+            Pre-fetched ItemTransactionModelQuerySet. Validated if provided.
+        aggregate_on_db: bool
+            If True, performs aggregation at the DB layer. Defaults to False.
+        lazy_agg: bool
+            If True, performs queryset aggregation metrics. Defaults to False.
+
+        Returns
+        -------
+        tuple
+            ItemModelQuerySet, dict
+        """
+        raise NotImplementedError()
+
+    def validate_itemtxs(self, itemtxs):
+        """
+        Validates the provided item transaction list.
+
+        Parameters
+        ----------
+        itemtxs: dict
+            Item transaction list to replace/aggregate.
+        """
+        if isinstance(itemtxs, dict):
+            if all([
+                all([
+                    isinstance(d, dict),
+                    'unit_cost' in d,
+                    'quantity' in d,
+                    'total_amount' in d
+                ]) for i, d in itemtxs.items()
+            ]):
+                return
+        raise ItemizeError('itemtxs must be an instance of dict.')
+
+    def can_migrate_itemtxs(self) -> bool:
+        """
+        Checks if item transaction list can be migrated.
+
+        Returns
+        -------
+        bool
+        """
+        raise NotImplementedError()
+
+    def _get_itemtxs_batch(self, itemtxs):
+        ItemTransactionModel = lazy_loader.get_item_transaction_model()
+        EstimateModel = lazy_loader.get_estimate_model()
+        PurchaseOrder = lazy_loader.get_purchase_order_model()
+
+        item_model_qs = self.get_item_model_qs()
+        item_model_qs = item_model_qs.filter(item_number__in=itemtxs.keys())
+        item_model_qs_map = {i.item_number: i for i in item_model_qs}
+
+        if itemtxs.keys() != item_model_qs_map.keys():
+            raise ItemizeError(message=f'Got items {itemtxs.keys()}, but only {item_model_qs_map.keys()} exists.')
+
+        if isinstance(self, EstimateModel):
+            return [
+                ItemTransactionModel(
+                    ce_model=self,
+                    item_model=item_model_qs_map[item_number],
+                    ce_quantity=i['quantity'],
+                    ce_unit_cost_estimate=i['unit_cost'],
+                    ce_unit_revenue_estimate=i['unit_revenue'],
+                ) for item_number, i in itemtxs.items()
+            ]
+
+        if isinstance(self, PurchaseOrder):
+            return [
+                ItemTransactionModel(
+                    po_model=self,
+                    item_model=item_model_qs_map[item_number],
+                    po_quantity=i['quantity'],
+                    po_unit_cost=i['unit_cost'],
+                ) for item_number, i in itemtxs.items()
+            ]
+
+        BillModel = lazy_loader.get_bill_model()
+        InvoiceModel = lazy_loader.get_invoice_model()
+
+        return [
+            ItemTransactionModel(
+                bill_model=self if isinstance(self, BillModel) else None,
+                invoice_model=self if isinstance(self, InvoiceModel) else None,
+                item_model=item_model_qs_map[item_number],
+                quantity=i['quantity'],
+                unit_cost=i['unit_cost']
+            ) for item_number, i in itemtxs.items()
+        ]
+
+    def migrate_itemtxs(self, itemtxs: Dict, operation: str, commit: bool = False):
+        """
+        Migrates a predefined item transaction list.
+
+        Parameters
+        ----------
+        itemtxs: dict
+            A dictionary where keys are the document number (invoice/bill number, etc) and values are a dictionary:
+        operation: str
+            A choice of ITEMIZE_REPLACE, ITEMIZE_APPEND, ITEMIZE_UPDATE
+        commit: bool
+            If True, commits transaction into the DB. Default to False
+
+        Returns
+        -------
+        list
+            A list of ItemTransactionModel appended or created.
+        """
+        if operation == self.ITEMIZE_UPDATE:
+            raise NotImplementedError(f'Operation {operation} not yet implemented.')
+
+        if self.can_migrate_itemtxs():
+            self.validate_itemtxs(itemtxs)
+
+            itemtxs_batch = self._get_itemtxs_batch(itemtxs)
+
+            for itx in itemtxs_batch:
+                itx.clean_fields()
+                itx.clean()
+
+            if commit:
+
+                ItemTransactionModel = lazy_loader.get_item_transaction_model()
+
+                if operation == self.ITEMIZE_APPEND:
+                    ItemTransactionModel.objects.bulk_create(objs=itemtxs_batch)
+                    itemtxs_qs, _ = self.get_itemtxs_data(lazy_agg=True)
+                    return itemtxs_qs
+                elif operation == self.ITEMIZE_REPLACE:
+                    itemtxs_qs, _ = self.get_itemtxs_data(lazy_agg=True)
+                    itemtxs_qs.delete()
+                    return ItemTransactionModel.objects.bulk_create(objs=itemtxs_batch)
+            return itemtxs_batch
+
+    def validate_itemtxs_qs(self):
+        """
+        Validates that the provided item transaction list is valid.
+        """
+        raise NotImplementedError()
diff --git a/django_ledger/models/purchase_order.py b/django_ledger/models/purchase_order.py
index 6a4f8856..4a8d405d 100644
--- a/django_ledger/models/purchase_order.py
+++ b/django_ledger/models/purchase_order.py
@@ -18,7 +18,7 @@
 """
 from datetime import date
 from string import ascii_uppercase, digits
-from typing import Tuple, List, Union, Optional
+from typing import Tuple, List, Union, Optional, Dict
 from uuid import uuid4
 
 from django.contrib.auth import get_user_model
@@ -35,8 +35,8 @@
 
 from django_ledger.models.bill import BillModel, BillModelQuerySet
 from django_ledger.models.entity import EntityModel
-from django_ledger.models.items import ItemTransactionModel, ItemTransactionModelQuerySet
-from django_ledger.models.mixins import CreateUpdateMixIn, MarkdownNotesMixIn
+from django_ledger.models.items import ItemTransactionModel, ItemTransactionModelQuerySet, ItemModelQuerySet, ItemModel
+from django_ledger.models.mixins import CreateUpdateMixIn, MarkdownNotesMixIn, ItemizeMixIn
 from django_ledger.models.utils import lazy_loader
 from django_ledger.settings import DJANGO_LEDGER_DOCUMENT_NUMBER_PADDING, DJANGO_LEDGER_PO_NUMBER_PREFIX
 
@@ -92,6 +92,9 @@ def active(self):
             Q(po_status__exact=PurchaseOrderModel.PO_STATUS_FULFILLED)
         )
 
+    def draft(self):
+        return self.filter(po_status__exact=PurchaseOrderModel.PO_STATUS_DRAFT)
+
 
 class PurchaseOrderModelManager(models.Manager):
     """
@@ -119,7 +122,9 @@ def for_entity(self, entity_slug, user_model) -> PurchaseOrderModelQuerySet:
         )
 
 
-class PurchaseOrderModelAbstract(CreateUpdateMixIn, MarkdownNotesMixIn):
+class PurchaseOrderModelAbstract(CreateUpdateMixIn,
+                                 ItemizeMixIn,
+                                 MarkdownNotesMixIn):
     """
     The base implementation of the PurchaseOrderModel.
 
@@ -332,10 +337,30 @@ def validate_item_transaction_qs(self, queryset: Union[ItemTransactionModelQuery
         if not valid:
             raise PurchaseOrderModelValidationError(f'Invalid queryset. All items must be assigned to PO {self.uuid}')
 
-    # State Update...
+    # ### ItemizeMixIn implementation START...
+
+    def can_migrate_itemtxs(self) -> bool:
+        return self.is_draft()
+
+    def migrate_itemtxs(self, itemtxs: Dict, operation: str, commit: bool = False):
+        itemtxs_batch = super().migrate_itemtxs(itemtxs=itemtxs, commit=commit, operation=operation)
+        self.update_state(itemtxs_qs=itemtxs_batch)
+        self.clean()
+        if commit:
+            self.save(update_fields=['po_amount',
+                                     'po_amount_received',
+                                     'updated'])
+        return itemtxs_batch
+
+    def get_item_model_qs(self) -> ItemModelQuerySet:
+        return ItemModel.objects.filter(
+            entity_id__exact=self.entity_id
+        ).purchase_orders()
+
     def get_itemtxs_data(self,
                          queryset: Optional[Union[ItemTransactionModelQuerySet, List[ItemTransactionModel]]] = None,
-                         aggregate_on_db: bool = False) -> Tuple:
+                         aggregate_on_db: bool = False,
+                         lazy_agg: bool = False) -> Tuple:
         """
         Fetches the PurchaseOrderModel Items and aggregates the QuerySet.
 
@@ -366,8 +391,9 @@ def get_itemtxs_data(self,
             'po_total_amount__sum': sum(i.total_amount for i in queryset),
             'bill_amount_paid__sum': sum(i.bill_model.amount_paid for i in queryset if i.bill_model_id),
             'total_items': len(queryset)
-        }
+        } if not lazy_agg else None
 
+    # ### ItemizeMixIn implementation END...
     def update_state(self,
                      itemtxs_qs: Optional[Union[ItemTransactionModelQuerySet, List[ItemTransactionModel]]] = None
                      ) -> Tuple:
diff --git a/django_ledger/templates/django_ledger/estimate/estimate_detail.html b/django_ledger/templates/django_ledger/estimate/estimate_detail.html
index cd5ede3d..0f8a7034 100644
--- a/django_ledger/templates/django_ledger/estimate/estimate_detail.html
+++ b/django_ledger/templates/django_ledger/estimate/estimate_detail.html
@@ -16,21 +16,21 @@
                             <div>
                                 <p class="heading">{% trans 'Revenue Estimate' %}:
                                 <p class="title" id="djl-cj-detail-estimated-revenue">
-                                    {% currency_symbol %}{{ estimate_model.revenue_estimate  | currency_format }}</p>
+                                    {% currency_symbol %}{{ estimate_model.get_revenue_estimate  | currency_format }}</p>
                             </div>
                         </div>
                         <div class="level-item has-text-centered">
                             <div>
                                 <p class="heading">{% trans 'Cost Estimate' %}:
                                 <p class="title" id="djl-cj-detail-estimated-cost">
-                                    {% currency_symbol %}{{ estimate_model.cost_estimate  | absolute | currency_format }}</p>
+                                    {% currency_symbol %}{{ estimate_model.get_cost_estimate  | absolute | currency_format }}</p>
                             </div>
                         </div>
                         <div class="level-item has-text-centered">
                             <div>
                                 <p class="heading">{% trans 'Profit Estimate' %}:
                                 <p class="title" id="djl-cj-detail-estimated-cost">
-                                    {% currency_symbol %}{{ estimate_model.profit_estimate | currency_format }}</p>
+                                    {% currency_symbol %}{{ estimate_model.get_profit_estimate | currency_format }}</p>
                             </div>
                         </div>
                         <div class="level-item has-text-centered">
diff --git a/django_ledger/templates/django_ledger/estimate/includes/card_estimate.html b/django_ledger/templates/django_ledger/estimate/includes/card_estimate.html
index 1b0392db..57b8a896 100644
--- a/django_ledger/templates/django_ledger/estimate/includes/card_estimate.html
+++ b/django_ledger/templates/django_ledger/estimate/includes/card_estimate.html
@@ -12,9 +12,9 @@ <h2 class="card-header-title has-text-weight-light is-size-3">
         <h2 class="is-size-3">{% trans 'Status' %}: {{ estimate_model.get_status_display }}</h2>
         <h3 class="has-text-weight-bold is-size-4 has-text-success">
             {% trans 'Estimated Revenue' %}:
-            {% currency_symbol %}{{ estimate_model.revenue_estimate }}</h3>
+            {% currency_symbol %}{{ estimate_model.get_revenue_estimate | currency_format }}</h3>
         <h3 class="is-size-4 has-text-info">{% trans 'Profit Estimate' %}:
-            {% currency_symbol %}{{ estimate_model.profit_estimate }}</h3>
+            {% currency_symbol %}{{ estimate_model.get_profit_estimate | currency_format }}</h3>
         <br>
         <p class="has-text-weight-bold">{% trans 'Cost Breakdown' %}:</p>
         <h3 class="has-text-weight-light is-italic is-size-5">
@@ -40,11 +40,11 @@ <h3 class="is-size-4 has-text-weight-light is-italic">
             <h2 class="mt-2">{% trans 'Cost Progress' %}</h2>
             <progress class="progress is-warning is-large"
                       value="{{ contract_progress.bill_amount_paid__sum }}"
-                      max="{{ contract_progress.cost_estimate }}"></progress>
+                      max="{{ contract_progress.get_cost_estimate }}"></progress>
             <h2>{% trans 'Invoice Progress' %}</h2>
             <progress class="progress is-info is-large"
                       value="{{ contract_progress.bill_amount_paid__sum }}"
-                      max="{{ contract_progress.revenue_estimate }}"></progress>
+                      max="{{ contract_progress.get_revenue_estimate }}"></progress>
             <h2>{% trans 'Received Progress' %}</h2>
             <progress class="progress is-success is-large"
                       value="{{ contract_progress.bill_amount_paid__sum }}"
@@ -82,14 +82,6 @@ <h2>{% trans 'Received Progress' %}</h2>
             {% modal_action_v2 estimate_model estimate_model.get_mark_as_approved_url estimate_model.get_mark_as_approved_message estimate_model.get_mark_as_approved_html_id %}
         {% endif %}
 
-        {# MARK APPROVE #}
-        {#        {% if estimate_model.can_approve %}#}
-        {#            <a onclick="djLedger.toggleModal('{{ estimate_model.get_mark_as_approved_html_id }}')"#}
-        {#               id="{{ estimate_model.get_mark_as_approved_html_id }}-button"#}
-        {#               class="card-footer-item has-text-info has-text-centered">{% trans 'Mark as Draft' %}</a>#}
-        {# MARK AS DRAFT MODAL #}
-        {#            {% modal_action_v2 estimate_model estimate_model.get_mark_as_approved_url estimate_model.get_mark_as_approved_message estimate_model.get_mark_as_approved_html_id %}#}
-        {#        {% endif %}#}
 
     </footer>
 </div>
diff --git a/django_ledger/templates/django_ledger/estimate/includes/estimate_item_table.html b/django_ledger/templates/django_ledger/estimate/includes/estimate_item_table.html
index be615fe9..9263ca07 100644
--- a/django_ledger/templates/django_ledger/estimate/includes/estimate_item_table.html
+++ b/django_ledger/templates/django_ledger/estimate/includes/estimate_item_table.html
@@ -38,10 +38,10 @@
             <th></th>
             <th>{% trans 'Total' %}</th>
             <th>
-                {% currency_symbol %}{{ ce_model.cost_estimate | currency_format }}
+                {% currency_symbol %}{{ ce_model.get_cost_estimate | currency_format }}
             </th>
             <th>
-                {% currency_symbol %}{{ ce_model.revenue_estimate | currency_format }}
+                {% currency_symbol %}{{ ce_model.get_revenue_estimate | currency_format }}
             </th>
         </tr>
         </tfoot>
diff --git a/django_ledger/templates/django_ledger/invoice/invoice_detail.html b/django_ledger/templates/django_ledger/invoice/invoice_detail.html
index 5adbacd7..23468a92 100644
--- a/django_ledger/templates/django_ledger/invoice/invoice_detail.html
+++ b/django_ledger/templates/django_ledger/invoice/invoice_detail.html
@@ -68,8 +68,8 @@
                         {% else %}
                             <div class="level-item has-text-centered">
                                 <div>
-                                    <p class="heading">You Still Owe</p>
-                                    <p class="title has-text-danger">
+                                    <p class="heading">You Are Owed</p>
+                                    <p class="title has-text-success">
                                         {% currency_symbol %}{{ invoice.get_amount_open | currency_format }}</p>
                                 </div>
                             </div>
diff --git a/django_ledger/templatetags/django_ledger.py b/django_ledger/templatetags/django_ledger.py
index 6a0e40bf..c6f4a84f 100644
--- a/django_ledger/templatetags/django_ledger.py
+++ b/django_ledger/templatetags/django_ledger.py
@@ -258,7 +258,7 @@ def invoice_txs_table(context, invoice_model: InvoiceModel):
         invoice_model=invoice_model,
         user_model=context['request'].user,
         entity_slug=context['view'].kwargs['entity_slug']
-    ).select_related('journal_entry').order_by('-journal_entry__date')
+    ).select_related('journal_entry').order_by('-journal_entry__timestamp')
     total_credits = sum(tx.amount for tx in txs_queryset if tx.tx_type == 'credit')
     total_debits = sum(tx.amount for tx in txs_queryset if tx.tx_type == 'debit')
     return {
diff --git a/django_ledger/views/bill.py b/django_ledger/views/bill.py
index cf1f6ae1..beca0831 100644
--- a/django_ledger/views/bill.py
+++ b/django_ledger/views/bill.py
@@ -170,7 +170,7 @@ def form_valid(self, form):
                 bill_model.ce_model_id = po_model.ce_model_id
 
             bill_model.update_amount_due()
-            bill_model.new_state(commit=True)
+            bill_model.get_state(commit=True)
             bill_model.clean()
             bill_model.save()
             po_model_items_qs.update(bill_model=bill_model)
@@ -450,7 +450,7 @@ def post(self, request, bill_pk, entity_slug, *args, **kwargs):
 
                     itemtxs_formset.save()
                     itemtxs_qs = bill_model.update_amount_due()
-                    bill_model.new_state(commit=True)
+                    bill_model.get_state(commit=True)
                     bill_model.clean()
                     bill_model.save(update_fields=['amount_due',
                                                    'amount_receivable',
diff --git a/django_ledger/views/estimate.py b/django_ledger/views/estimate.py
index 4e58be91..09ac237a 100644
--- a/django_ledger/views/estimate.py
+++ b/django_ledger/views/estimate.py
@@ -159,7 +159,7 @@ def get_context_data(self, itemtxs_formset=None, **kwargs):
         context['header_subtitle'] = ce_model.title
         context['header_subtitle_icon'] = 'eos-icons:job'
         if not itemtxs_formset:
-            itemtxs_qs: ItemTransactionModelQuerySet = ce_model.get_itemtxs_data()
+            itemtxs_qs, _ = ce_model.get_itemtxs_data()
             itemtxs_agg = itemtxs_qs.get_estimate_aggregate()
             if ce_model.can_update_items():
                 itemtxs_formset = CanEditEstimateItemModelFormset(
@@ -176,7 +176,7 @@ def get_context_data(self, itemtxs_formset=None, **kwargs):
                     queryset=itemtxs_qs
                 )
         else:
-            itemtxs_qs = ce_model.get_itemtxs_data(itemtxs_qs=itemtxs_formset.queryset)
+            itemtxs_qs, _ = ce_model.get_itemtxs_data(queryset=itemtxs_formset.queryset)
             itemtxs_agg = itemtxs_qs.get_estimate_aggregate()
 
         context['ce_revenue_estimate__sum'] = itemtxs_agg['ce_revenue_estimate__sum']
diff --git a/django_ledger/views/invoice.py b/django_ledger/views/invoice.py
index dba3d374..8cf036c4 100644
--- a/django_ledger/views/invoice.py
+++ b/django_ledger/views/invoice.py
@@ -327,7 +327,7 @@ def post(self, request, entity_slug, invoice_pk, *args, **kwargs):
 
                     itemtxs_list = itemtxs_formset.save()
                     itemtxs_qs = invoice_model.update_amount_due()
-                    invoice_model.new_state(commit=True)
+                    invoice_model.get_state(commit=True)
                     invoice_model.clean()
                     invoice_model.save(
                         update_fields=['amount_due',
diff --git a/notebooks/QuickStart Notebook.ipynb b/notebooks/QuickStart Notebook.ipynb
index dee49783..dab38d5d 100644
--- a/notebooks/QuickStart Notebook.ipynb	
+++ b/notebooks/QuickStart Notebook.ipynb	
@@ -4,13 +4,14 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "is_executing": true
+    "is_executing": true,
+    "tags": []
    },
    "outputs": [],
    "source": [
     "import os\n",
     "from datetime import date, datetime\n",
-    "from random import randint\n",
+    "from random import randint, choices, random\n",
     "\n",
     "import django\n",
     "\n",
@@ -53,7 +54,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:25:51.456598352Z",
      "start_time": "2023-05-02T12:25:51.447664279Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -77,7 +79,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:25:52.456383236Z",
      "start_time": "2023-05-02T12:25:52.433795957Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -110,7 +113,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:25:55.034942055Z",
      "start_time": "2023-05-02T12:25:55.032364115Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -124,7 +128,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:25:55.592227653Z",
      "start_time": "2023-05-02T12:25:55.540012210Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -141,7 +146,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:25:56.272229803Z",
      "start_time": "2023-05-02T12:25:56.265634611Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -169,7 +175,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:25:59.223473672Z",
      "start_time": "2023-05-02T12:25:59.219511440Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -183,7 +190,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:26:07.661561066Z",
      "start_time": "2023-05-02T12:26:00.739321371Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -204,7 +212,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:26:38.055549032Z",
      "start_time": "2023-05-02T12:26:37.999323946Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -218,7 +227,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:26:39.921887978Z",
      "start_time": "2023-05-02T12:26:39.915563054Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -246,7 +256,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:26:43.009405285Z",
      "start_time": "2023-05-02T12:26:42.942771183Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -277,7 +288,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:26:44.617468507Z",
      "start_time": "2023-05-02T12:26:44.579227915Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -292,7 +304,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:26:45.435390661Z",
      "start_time": "2023-05-02T12:26:45.357464265Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -314,7 +327,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:26:46.584346488Z",
      "start_time": "2023-05-02T12:26:46.556516411Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -336,7 +350,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:26:47.779311513Z",
      "start_time": "2023-05-02T12:26:47.704570419Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -358,7 +373,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:26:49.123819554Z",
      "start_time": "2023-05-02T12:26:49.032005255Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -380,7 +396,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:26:50.730393083Z",
      "start_time": "2023-05-02T12:26:50.637183861Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -395,7 +412,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:26:56.399161427Z",
      "start_time": "2023-05-02T12:26:56.387512126Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -418,7 +436,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:26:54.214820993Z",
      "start_time": "2023-05-02T12:26:54.203960372Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -440,7 +459,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:27:05.534234034Z",
      "start_time": "2023-05-02T12:27:05.527369317Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -462,7 +482,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:27:06.296801083Z",
      "start_time": "2023-05-02T12:27:06.292091840Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -476,7 +497,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:27:46.379850935Z",
      "start_time": "2023-05-02T12:27:46.368793177Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -505,7 +527,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:27:51.093768675Z",
      "start_time": "2023-05-02T12:27:51.036828067Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -527,7 +550,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:27:54.352306250Z",
      "start_time": "2023-05-02T12:27:54.346310783Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -558,7 +582,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:27:56.752528818Z",
      "start_time": "2023-05-02T12:27:56.657579646Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -580,7 +605,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:27:58.048776998Z",
      "start_time": "2023-05-02T12:27:58.042439513Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -611,7 +637,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:32:21.218218856Z",
      "start_time": "2023-05-02T12:32:21.142651261Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -633,7 +660,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:32:27.206572755Z",
      "start_time": "2023-05-02T12:32:27.186853182Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -643,6 +671,60 @@
     ")"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# invoice_model."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Add Items to Invoices"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "invoices_item_models = invoice_model.get_item_model_qs()\n",
+    "\n",
+    "K = 6\n",
+    "\n",
+    "invoice_itemtxs = {\n",
+    "    im.item_number: {\n",
+    "        'unit_cost': round(random() * 10, 2),\n",
+    "        'quantity': round(random() * 100, 2),\n",
+    "        'total_amount': None\n",
+    "    } for im in choices(invoices_item_models, k=K)\n",
+    "}\n",
+    "\n",
+    "# Choose operation ITEMIZE_APPEND to append itemtxs...\n",
+    "invoice_itemtxs = invoice_model.migrate_itemtxs(itemtxs=invoice_itemtxs,\n",
+    "                                                commit=True,\n",
+    "                                                operation=InvoiceModel.ITEMIZE_REPLACE)\n",
+    "invoice_itemtxs"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "invoice_model.amount_due"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -664,7 +746,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:37:18.049868700Z",
      "start_time": "2023-05-02T12:37:17.947993149Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -686,7 +769,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:37:26.105399746Z",
      "start_time": "2023-05-02T12:37:26.047062814Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -696,6 +780,52 @@
     ")"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Add Items to Bills"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "bill_item_models = bill_model.get_item_model_qs()\n",
+    "\n",
+    "K = 6\n",
+    "\n",
+    "bill_itemtxs = {\n",
+    "    im.item_number: {\n",
+    "        'unit_cost': round(random() * 10, 2),\n",
+    "        'quantity': round(random() * 100, 2),\n",
+    "        'total_amount': None\n",
+    "    } for im in choices(bill_item_models, k=K)\n",
+    "}\n",
+    "\n",
+    "# Choose operation ITEMIZE_APPEND to append itemtxs...\n",
+    "bill_itemtxs = bill_model.migrate_itemtxs(itemtxs=bill_itemtxs,\n",
+    "                                          commit=True,\n",
+    "                                          operation=BillModel.ITEMIZE_REPLACE)\n",
+    "\n",
+    "bill_itemtxs"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "bill_model.amount_due"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -717,7 +847,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:43:41.688757495Z",
      "start_time": "2023-05-02T12:43:41.651313834Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -739,11 +870,58 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:44:42.654178152Z",
      "start_time": "2023-05-02T12:44:42.646667501Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
-    "purchase_order = entity_model.create_purchase_order()"
+    "po_model = entity_model.create_purchase_order()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Add Items to Purchase Orders"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "po_item_models = po_model.get_item_model_qs()\n",
+    "\n",
+    "K = 6\n",
+    "\n",
+    "po_itemtxs = {\n",
+    "    im.item_number: {\n",
+    "        'unit_cost': round(random() * 10, 2),\n",
+    "        'quantity': round(random() * 100, 2),\n",
+    "        'total_amount': None\n",
+    "    } for im in choices(po_item_models, k=K)\n",
+    "}\n",
+    "\n",
+    "# Choose operation ITEMIZE_APPEND to append itemtxs...\n",
+    "po_itemtxs = po_model.migrate_itemtxs(itemtxs=po_itemtxs,\n",
+    "                                      commit=True,\n",
+    "                                      operation=EstimateModel.ITEMIZE_REPLACE)\n",
+    "\n",
+    "po_itemtxs"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "po_model.po_amount"
    ]
   },
   {
@@ -767,7 +945,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:45:59.156196405Z",
      "start_time": "2023-05-02T12:45:58.942829638Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -789,7 +968,8 @@
     "ExecuteTime": {
      "end_time": "2023-05-02T12:49:33.186131292Z",
      "start_time": "2023-05-02T12:49:33.125270860Z"
-    }
+    },
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -800,6 +980,86 @@
     ")"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Add Items to Estimates"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "estimate_item_models = estimate_model.get_item_model_qs()\n",
+    "\n",
+    "K = 6\n",
+    "\n",
+    "estimate_itemtxs = {\n",
+    "    im.item_number: {\n",
+    "        'unit_cost': round(random() * 10, 2),\n",
+    "        'unit_revenue': round(random() * 20, 2),\n",
+    "        'quantity': round(random() * 100, 2),\n",
+    "        'total_amount': None\n",
+    "    } for im in choices(estimate_item_models, k=K)\n",
+    "}\n",
+    "\n",
+    "# Choose operation ITEMIZE_APPEND to append itemtxs...\n",
+    "estimate_itemtxs = estimate_model.migrate_itemtxs(itemtxs=estimate_itemtxs,\n",
+    "                                                  commit=True,\n",
+    "                                                  operation=EstimateModel.ITEMIZE_REPLACE)\n",
+    "\n",
+    "estimate_itemtxs"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "estimate_model.get_cost_estimate()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "estimate_model.get_revenue_estimate()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "estimate_model.get_profit_estimate()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "estimate_model.get_gross_margin_estimate(as_percent=True)"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -1289,7 +1549,9 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {},
+   "metadata": {
+    "tags": []
+   },
    "outputs": [],
    "source": [
     "io_digest['tx_digest']['cash_flow_statement']"
@@ -1316,5 +1578,5 @@
   }
  },
  "nbformat": 4,
- "nbformat_minor": 1
+ "nbformat_minor": 4
 }
diff --git a/pyproject.toml b/pyproject.toml
index d44fb806..8a24886e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "django-ledger"
-version = "0.5.3.1"
+version = "0.5.3.2"
 readme = "README.md"
 requires-python = ">=3.7"
 description = "Bookkeeping & Financial analysis backend for Django. Balance Sheet, Income Statements, Chart of Accounts, Entities"