Hey @Daniel
There could be several potential causes of "Azure Active Directory transient error" related to Azure Backup. One possible cause could be an issue with the Azure Active Directory authentication token. Another possible cause could be a network connectivity issue between the Azure Backup service and Azure Active Directory. It's also possible that there could be an issue with the Azure Backup service itself. Some basic troubleshooting steps are:
- Check the Azure Backup service status to see if there are any known issues or outages.
- Verify that the Azure Active Directory authentication token is valid and has not expired.
- Check the network connectivity between the Azure Backup service and Azure Active Directory.
- Review the Azure Backup logs to see if there are any error messages or warnings that could provide more information about the issue.
Based off the limited provided information though, I suggest opening a support request should the issue still persists.