Merge pull request #288508 from MicrosoftDocs/a1538fe8-7016-4afc-ba41-ec25b056d267_51

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Author: learn-build-service-prod[bot]

articles/iot-hub-device-update/device-update-groups.md

@@ -5,7 +5,8 @@ author: aysancag
 ms.author: aysancag
 ms.date: 2/09/2021
 ms.topic: concept-article
-ms.service: iot-hub-device-update
+ms.service: azure-iot-hub
+ms.subservice: device-update
 ---
 
 # Device groups