User Email mismatch with Cmn_notif_device email - finder

Server-Side Components/Background Scripts/User Email mismatch with Cmn Notif device/README.md

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+# Email Mismatch Checker
+
+## Description
+
+This ServiceNow background script checks for mismatches between notification devices and user records based on email addresses.
+
+It looks for active `cmn_notif_device` records that:
+- Have a non-null `email_address`
+- Are linked to a user
+- Are of type "Email"
+- Are named "Primary Email"
+
+Then it verifies if a matching user exists in the `sys_user` table with the same email. If no match is found, the mismatch is logged.
+
+## How to Use
+
+1. Go to **Scripts > Background** in your ServiceNow instance.
+2. Paste the script.
+3. Run the script.
+4. Check the system logs for mismatch details.
+
+## Output
+
+Logs the number of mismatches and details like:
+Mismatch: Device=<device_name>, Device Email=<email_address>

Server-Side Components/Background Scripts/User Email mismatch with Cmn Notif device/userEmailMismatchwithcmnNotifDevice.js

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+// Background Script - Run in Scripts > Background
+
+function findEmailMismatches() {
+    var mismatches = [];
+
+    var deviceGR = new GlideRecord('cmn_notif_device');
+    deviceGR.addNotNullQuery('email_address'); // Only check devices with email populated
+    deviceGR.addNotNullQuery("user");          // Ensure device is linked to a user
+    deviceGR.addQuery("type", "Email");        // Filter for email-type devices
+    deviceGR.addQuery("name", "Primary Email");// Filter for primary email devices
+    deviceGR.addActiveQuery();                 // Only active devices
+    deviceGR.query();
+
+    while (deviceGR.next()) {
+        var userGR = new GlideRecord('sys_user');
+        userGR.addQuery('email', deviceGR.email_address);
+        userGR.query();
+
+        if (!userGR.next()) {
+            // Found a mismatch
+            mismatches.push({
+                device_sys_id: deviceGR.getUniqueValue(),
+                device_name: deviceGR.getDisplayValue(),
+                email: deviceGR.email_address.toString(),
+                user_sys_id: 'No matching user found'
+            });
+        }
+    }
+
+    return mismatches;
+}
+
+// Execute and log results
+var results = findEmailMismatches();
+gs.info('Found ' + results.length + ' email mismatches:');
+
+for (var i = 0; i < results.length; i++) {
+    gs.info('Mismatch: Device=' + results[i].device_name + ', Device Email=' + results[i].email);
+}