diff --git a/Server-Side Components/Business Rules/Dynamic GlideList Field Sync/README.md b/Server-Side Components/Business Rules/Dynamic GlideList Field Sync/README.md
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+++ b/Server-Side Components/Business Rules/Dynamic GlideList Field Sync/README.md	
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+This code_snippet.js script sync all related assignment groups when a record’s department changes.
diff --git a/Server-Side Components/Business Rules/Dynamic GlideList Field Sync/code_snippet.js b/Server-Side Components/Business Rules/Dynamic GlideList Field Sync/code_snippet.js
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+++ b/Server-Side Components/Business Rules/Dynamic GlideList Field Sync/code_snippet.js	
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+// This script sync all related assignment groups when a record’s department changes and this business rule runs After Update
+(function executeRule(current, previous) {
+    if (current.department.changes()) {
+        var grp = new GlideRecord('sys_user_group');
+        grp.addQuery('u_department', current.department);
+        grp.query();
+        var list = [];
+        while (grp.next()) list.push(grp.sys_id.toString());
+        current.assignment_group = list.join(',');
+        current.update();
+    }
+})(current, previous);