Other Intune-related topics, including unsupported scenarios and platform-specific behaviors
@Evans, Danny,Thanks for posting in Q&A.
From your description, I know you want to delete stale records in Intune automatically.
Based on my researching, we can configure Device Cleanup rules in Intune to automatically remove devices that haven’t checked in for several days.
Here is a link you can refer.
Hope it will help.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.