System Exception – CoreException Thrown by Provider
Error: Exception of type 'Providers.Common.V1.CoreException' was thrown.
This is a generic exception triggered when Sync 365 is unable to access data from the customer tenant due to missing permissions.
Cause: The delegated admin account lacks the required role — typically Application Administrator — in the GDAP relationship assigned to the customer tenant.
Resolution
- Check the GDAP configuration in Microsoft Partner Center
- Ensure the security group used in the relationship includes:
- Your delegated admin account
- Roles such as Application Administrator and Global Reader
- Refer to the guide here for step-by-step validation:Checking your GDAP relationship
Once updated, changes may take up to 30 minutes to propagate.
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