diff --git a/Mapping/mapping.py b/Mapping/mapping.py
index 19976e3..5f211f4 100644
--- a/Mapping/mapping.py
+++ b/Mapping/mapping.py
@@ -148,7 +148,11 @@ def get_award_json(df_byspeed, df_sap_contract, df_sap_po):
     # print(awards)
     # file_name = "awards.json"
     # insert it into the database
-    mycol.insert_one(awards_json)
+    existing_entry = mycol.find_one({"contract_id": str(awards_id)})
+    if existing_entry is None:
+        mycol.insert_one(awards_json)
+    else:
+        pass
     # print(mycol.insert_one(awards))
     # Use a context manager to open the file and write the JSON data
     # with open(file_name, 'w') as json_file:
@@ -246,7 +250,12 @@ def get_tender_json(contract_id, df_byspeed,df_bureau_ref, df_procurement_ref):
         "tender": tender
     }
     # print(tender_json)
-    mycol_tender.insert_one(tender_json)
+    existing_entry = mycol_tender.find_one({"contract_id": contract_id})
+    if existing_entry is None:
+        mycol_tender.insert_one(tender_json)
+    else:
+        pass
+    
     # file_name = "tender.json"
     # # Use a context manager to open the file and write the JSON data
     # with open(file_name, 'w') as json_file:
@@ -320,7 +329,12 @@ def get_general_json(contract_id, df_byspeed, df_bureau_ref):
         "general": general
     }
     # insert it into the database
-    mycol_general.insert_one(general_json)
+    existing_entry = mycol_general.find_one({"contract_id": contract_id})
+    if existing_entry is None:
+        mycol_general.insert_one(general_json)
+    else:
+        pass
+    
     # print(general_json)
     # file_name = "general.json"
     # # Use a context manager to open the file and write the JSON data
@@ -394,7 +408,11 @@ def get_contract_json(contract_id_input, df_sap_contract, df_sap_po):
         "contracts": contracts
     }
     # print(contract_json)
-    mycol_contract.insert_one(contract_json)
+    existing_entry = mycol_contract.find_one({"contract_id": contract_id_input})
+    if existing_entry is None:
+        mycol_contract.insert_one(contract_json)
+    else:
+        pass
 
 def get_party_json(contract_id, df_byspeed, df_sap_contract, df_bureau_ref, df_sap_po, df_B2G):
     # parties 1
@@ -515,7 +533,12 @@ def get_party_json(contract_id, df_byspeed, df_sap_contract, df_bureau_ref, df_s
         "parties": parties
     }
     # print(parties_json)
-    mycol_party.insert_one(parties_json)
+    existing_entry = mycol_party.find_one({"contract_id": contract_id})
+    if existing_entry is None:
+        mycol_party.insert_one(parties_json)
+    else:
+        pass
+
 
 
 def get_award_json_and_insert_db():
diff --git a/Readme.md b/Readme.md
index 7a5832c..e849d40 100644
--- a/Readme.md
+++ b/Readme.md
@@ -25,7 +25,11 @@ docker exec -it cop /bin/bash
 cd Mapping/
 python3 mapping.py
 ```
+We have provided a config file. In this file, please change the path of the Excel report you want to import to the one you intend to use, making it convenient for you to convert data from different bureaus.
+![Alt text](./src/config.png)
+
 ![Alt text](./src/initiate_db.png)
+
 ### **4. Start back-end server**
 Start the back-end server inside the container:
 ```
diff --git a/src/config.png b/src/config.png
new file mode 100644
index 0000000..11131fe
Binary files /dev/null and b/src/config.png differ