@KAURAV TRIVEDI / IT / AHMEDABAD, Thanks for posting in Q&A. From your description, it seems we deployed device configuration policy with error -2016345612. If there's any misunderstanding, feel free to let us know.
After researching, I didn't get the error description. To get the more detailed error, you can go to one affected device side and check the Event log under Applications and Services Logs > Microsoft > Windows > DeviceManagement-Enterprise-Diagnostic-Provider > Admin to see the detailed error.
If there's any update, feel free to let us know.
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