Hey mate,
If you’re stuck trying to delete the Azure Activity data connector in MS Sentinel, try that...
Make sure you’ve got the right permissions (Sentinel Contributor). Check if there are any dependent rules or settings in Sentinel. Try deleting it via API or PowerShell if the UI isn’t working. In Azure Monitor, check if data is still being sent to the Log Analytics workspace. If all else fails, raise a ticket with Microsoft Support.
Let me know how it goes! Cheers! 😊
Alex