Azure Backup Error: Unable to save backup policy.

I discovered today that Azure Backup has a maximum number of exclusions that can be included when configuring your backup policy.

Once you go over 90 exclusions, you receive the following error: “The Backup policy could not be modified. Error: Unable to save backup policy.  Selected items list for backup is large or selected items have long path names or selected large number of retention choices.  Please retry operation again after reducing individual items (selecting complete folders can help) or reducing retention choices.

Note the File Exclusions count in the image below equals 91, triggering the error.

Solution: Reduce the exclusions list to 90 or below.


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