diff --git a/README.md b/README.md
index f8b67cc..5195d18 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 Contributors: mnchga
 Tags: booking, participants, courses, events, eduadmin, lega online, google, analytics, tag manager
 Requires at least: 5.8
-Tested up to: 6.0
+Tested up to: 6.4
 Stable tag: 1.0.0
 Requires PHP: 7.0
 License: GPL3
@@ -14,3 +14,10 @@ This plugin adds support for Google Analytics / Tag Manager to your EduAdmin plu
 # EduAdmin - Google Analytics / Tag Manager WordPress
 
 This plugin adds support for Google Analytics / Tag Manager to your [EduAdmin-Wordpress plugin](https://github.com/MultinetInteractive/EduAdmin-WordPress).
+
+The plugin will add javascript to your website that will send events to Google Analytics / Tag Manager when a user interacts with the booking form.
+
+The domain of the javascript will be from https://www.googletagmanager.com, and you can find their terms of service here:
+https://www.google.com/analytics/terms/tag-manager/
+
+This plugin requires that you're using the [EduAdmin-Wordpress plugin](https://wordpress.org/plugins/eduadmin-booking/)
\ No newline at end of file
diff --git a/class/class-edu-google.php b/class/class-edu-google.php
index 441b8f2..2ee2d9c 100644
--- a/class/class-edu-google.php
+++ b/class/class-edu-google.php
@@ -1,8 +1,8 @@
 <?php
 defined( 'ABSPATH' ) or die( 'This plugin must be run within the scope of WordPress.' );
 
-if ( ! class_exists( 'EDU_Google' ) ) {
-	class EDU_Google extends EDU_Integration {
+if ( ! class_exists( 'EDUGTAG_Google' ) ) {
+	class EDUGTAG_Google extends EDU_Integration {
 		/**
 		 * Constructor
 		 */
@@ -136,7 +136,7 @@ public function track_list_course_view( $courses ) {
                 <script type="text/javascript">gtag('event', 'view_item_list', {
                         'item_list_id': 'course_list',
                         'item_list_name': 'Course list',
-                        'items': <?php echo json_encode( $gtag_items, JSON_PRETTY_PRINT ); ?> });</script>
+                        'items': <?php echo wp_json_encode( $gtag_items, JSON_PRETTY_PRINT ); ?> });</script>
 				<?php
 			}
 		}
@@ -161,7 +161,7 @@ public function track_list_event_view( $events ) {
                 <script type="text/javascript">gtag('event', 'view_item_list', {
                         'item_list_id': 'event_list',
                         'item_list_name': 'Event list',
-                        'items': <?php echo json_encode( $gtag_items, JSON_PRETTY_PRINT ); ?> });</script>
+                        'items': <?php echo wp_json_encode( $gtag_items, JSON_PRETTY_PRINT ); ?> });</script>
 				<?php
 			}
 		}
@@ -183,7 +183,7 @@ public function track_detail_view( $course_template ) {
 			if ( count( $gtag_items ) > 0 ) {
 				?>
                 <script type="text/javascript">gtag('event', 'view_item', {
-                        'items': <?php echo json_encode( $gtag_items, JSON_PRETTY_PRINT ); ?> });</script>
+                        'items': <?php echo wp_json_encode( $gtag_items, JSON_PRETTY_PRINT ); ?> });</script>
 				<?php
 			}
 		}
@@ -203,7 +203,7 @@ public function track_programme_detail_view( $programme ) {
 			if ( count( $gtag_items ) > 0 ) {
 				?>
                 <script type="text/javascript">gtag('event', 'view_item', {
-                        'items': <?php echo json_encode( $gtag_items, JSON_PRETTY_PRINT ); ?> });</script>
+                        'items': <?php echo wp_json_encode( $gtag_items, JSON_PRETTY_PRINT ); ?> });</script>
 				<?php
 			}
 		}
@@ -225,7 +225,7 @@ public function track_booking_view( $course_template ) {
 			if ( count( $gtag_items ) > 0 ) {
 				?>
                 <script type="text/javascript">gtag('event', 'begin_checkout', {
-                        'items': <?php echo json_encode( $gtag_items, JSON_PRETTY_PRINT ); ?> });</script>
+                        'items': <?php echo wp_json_encode( $gtag_items, JSON_PRETTY_PRINT ); ?> });</script>
 				<?php
 			}
 		}
@@ -245,7 +245,7 @@ public function track_programme_booking_view( $programme ) {
 			if ( count( $gtag_items ) > 0 ) {
 				?>
                 <script type="text/javascript">gtag('event', 'begin_checkout', {
-                        'items': <?php echo json_encode( $gtag_items, JSON_PRETTY_PRINT ); ?> });</script>
+                        'items': <?php echo wp_json_encode( $gtag_items, JSON_PRETTY_PRINT ); ?> });</script>
 				<?php
 			}
 		}
@@ -313,7 +313,7 @@ public function track_booking_completed( $booking_info ) {
                         'currency': '<?php echo esc_js( $currency ); ?>',
                         'value': <?php echo esc_js( $booking_info["TotalPriceExVat"] ); ?>,
                         'tax': <?php echo esc_js( $booking_info["VatSum"] ); ?>,
-                        'items': <?php echo json_encode( $order_rows, JSON_PRETTY_PRINT ); ?>
+                        'items': <?php echo wp_json_encode( $order_rows, JSON_PRETTY_PRINT ); ?>
                     });</script>
 				<?php
 			}
diff --git a/eduadmin-google.php b/eduadmin-google.php
index 8c1859d..d3fd954 100644
--- a/eduadmin-google.php
+++ b/eduadmin-google.php
@@ -10,7 +10,7 @@
  * GitHub Plugin URI: multinetinteractive/eduadmin-google
  * GitHub Plugin URI: https://github.com/multinetinteractive/eduadmin-google
  * Requires at least: 5.8
- * Tested up to: 6.0
+ * Tested up to: 6.4
  * Author:	Chris Gårdenberg, MultiNet Interactive AB
  * Author URI:	https://www.multinet.com
  * License:	GPL3
@@ -35,26 +35,28 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-add_action( 'admin_init', 'checkForEduAdminPlugin' );
-function checkForEduAdminPlugin() {
-	if ( is_admin() && current_user_can( 'activate_plugins' ) && ( ! is_plugin_active( 'eduadmin-booking/eduadmin.php' ) && ! is_plugin_active( 'eduadmin/eduadmin.php' ) ) ) {
-		add_action( 'admin_notices', function () {
-			?>
-			<div class="error">
-			<p><?php _e( 'This plugin requires the EduAdmin-WordPress-plugin to be installed and activated.', 'eduadmin-google' ); ?></p>
-			</div><?php
-		} );
-		deactivate_plugins( plugin_basename( __FILE__ ) );
+if ( ! function_exists( 'EDUGTAG_checkForEduAdminPlugin' ) ) {
+	add_action( 'admin_init', 'EDUGTAG_checkForEduAdminPlugin' );
+	function EDUGTAG_checkForEduAdminPlugin() {
+		if ( is_admin() && current_user_can( 'activate_plugins' ) && ( ! is_plugin_active( 'eduadmin-booking/eduadmin.php' ) && ! is_plugin_active( 'eduadmin/eduadmin.php' ) ) ) {
+			add_action( 'admin_notices', function () {
+				?>
+                <div class="error">
+                <p><?php esc_html_e( 'This plugin requires the EduAdmin-WordPress-plugin to be installed and activated.', 'eduadmin-google' ); ?></p>
+                </div><?php
+			} );
+			deactivate_plugins( plugin_basename( __FILE__ ) );
 
-		if ( isset( $_GET['activate'] ) ) {
-			unset( $_GET['activate'] );
+			if ( isset( $_GET['activate'] ) ) {
+				unset( $_GET['activate'] );
+			}
 		}
 	}
 }
 
-if ( ! class_exists( 'EDU_Google_Loader' ) ):
+if ( ! class_exists( 'EDUGTAG_Google_Loader' ) ):
 
-	final class EDU_Google_Loader {
+	final class EDUGTAG_Google_Loader {
 		public function __construct() {
 			add_action( 'plugins_loaded', array( $this, 'init' ) );
 		}
@@ -68,11 +70,11 @@ public function init() {
 		}
 
 		public function add_integration( $integrations ) {
-			$integrations[] = 'EDU_Google';
+			$integrations[] = 'EDUGTAG_Google';
 
 			return $integrations;
 		}
 	}
 
-	$edu_sveawebpay_loader = new EDU_Google_Loader( __FILE__ );
+	$edu_google_loader = new EDUGTAG_Google_Loader( __FILE__ );
 endif;
diff --git a/package.json b/package.json
index 223ed18..f54fc32 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
   },
   "config": {
     "eduadmin": {
-      "testedUpTo": "6.0",
+      "testedUpTo": "6.4",
       "requiresAtLeast": "5.8",
       "minimumPhpVersion": "7.0"
     }
diff --git a/src/README.md b/src/README.md
index 780067f..6e4bef7 100644
--- a/src/README.md
+++ b/src/README.md
@@ -14,3 +14,10 @@ This plugin adds support for Google Analytics / Tag Manager to your EduAdmin plu
 # EduAdmin - Google Analytics / Tag Manager WordPress
 
 This plugin adds support for Google Analytics / Tag Manager to your [EduAdmin-Wordpress plugin](https://github.com/MultinetInteractive/EduAdmin-WordPress).
+
+The plugin will add javascript to your website that will send events to Google Analytics / Tag Manager when a user interacts with the booking form.
+
+The domain of the javascript will be from https://www.googletagmanager.com, and you can find their terms of service here:
+https://www.google.com/analytics/terms/tag-manager/
+
+This plugin requires that you're using the [EduAdmin-Wordpress plugin](https://wordpress.org/plugins/eduadmin-booking/)
\ No newline at end of file
diff --git a/src/eduadmin-google.php b/src/eduadmin-google.php
index 3d69ff7..cbe536d 100644
--- a/src/eduadmin-google.php
+++ b/src/eduadmin-google.php
@@ -35,26 +35,28 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-add_action( 'admin_init', 'checkForEduAdminPlugin' );
-function checkForEduAdminPlugin() {
-	if ( is_admin() && current_user_can( 'activate_plugins' ) && ( ! is_plugin_active( 'eduadmin-booking/eduadmin.php' ) && ! is_plugin_active( 'eduadmin/eduadmin.php' ) ) ) {
-		add_action( 'admin_notices', function () {
-			?>
-			<div class="error">
-			<p><?php _e( 'This plugin requires the EduAdmin-WordPress-plugin to be installed and activated.', 'eduadmin-google' ); ?></p>
-			</div><?php
-		} );
-		deactivate_plugins( plugin_basename( __FILE__ ) );
+if ( ! function_exists( 'EDUGTAG_checkForEduAdminPlugin' ) ) {
+	add_action( 'admin_init', 'EDUGTAG_checkForEduAdminPlugin' );
+	function EDUGTAG_checkForEduAdminPlugin() {
+		if ( is_admin() && current_user_can( 'activate_plugins' ) && ( ! is_plugin_active( 'eduadmin-booking/eduadmin.php' ) && ! is_plugin_active( 'eduadmin/eduadmin.php' ) ) ) {
+			add_action( 'admin_notices', function () {
+				?>
+                <div class="error">
+                <p><?php esc_html_e( 'This plugin requires the EduAdmin-WordPress-plugin to be installed and activated.', 'eduadmin-google' ); ?></p>
+                </div><?php
+			} );
+			deactivate_plugins( plugin_basename( __FILE__ ) );
 
-		if ( isset( $_GET['activate'] ) ) {
-			unset( $_GET['activate'] );
+			if ( isset( $_GET['activate'] ) ) {
+				unset( $_GET['activate'] );
+			}
 		}
 	}
 }
 
-if ( ! class_exists( 'EDU_Google_Loader' ) ):
+if ( ! class_exists( 'EDUGTAG_Google_Loader' ) ):
 
-	final class EDU_Google_Loader {
+	final class EDUGTAG_Google_Loader {
 		public function __construct() {
 			add_action( 'plugins_loaded', array( $this, 'init' ) );
 		}
@@ -68,11 +70,11 @@ public function init() {
 		}
 
 		public function add_integration( $integrations ) {
-			$integrations[] = 'EDU_Google';
+			$integrations[] = 'EDUGTAG_Google';
 
 			return $integrations;
 		}
 	}
 
-	$edu_sveawebpay_loader = new EDU_Google_Loader( __FILE__ );
+	$edu_google_loader = new EDUGTAG_Google_Loader( __FILE__ );
 endif;