diff --git a/Server-Side Components/Business Rules/Prevent Duplicate CI (Configuration Item) Names/README.md b/Server-Side Components/Business Rules/Prevent Duplicate CI (Configuration Item) Names/README.md
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+This Script under code_snippet.js block users from saving a CI with a duplicate name but different class.
diff --git a/Server-Side Components/Business Rules/Prevent Duplicate CI (Configuration Item) Names/code_snippets.js b/Server-Side Components/Business Rules/Prevent Duplicate CI (Configuration Item) Names/code_snippets.js
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+++ b/Server-Side Components/Business Rules/Prevent Duplicate CI (Configuration Item) Names/code_snippets.js	
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+// Business Rule to Block users from saving a CI with a duplicate name but different class
+// Before Insert Business Rule on cmdb_ci table
+(function executeRule(current, previous /*null when async*/) {
+
+    var ci = new GlideRecord('cmdb_ci');
+    ci.addQuery('name', current.name);
+    ci.addQuery('sys_id', '!=', current.sys_id);
+    ci.query();
+
+    if (ci.next()) {
+        gs.addErrorMessage('A Configuration Item with this name already exists!');
+        current.setAbortAction(true);
+    }
+
+})(current, previous);