Authorization Error – Unsupported Token or Access Forbidden

Error: Authorization Error – Unsupported Token or Access Forbidden

This error means that your Sync 365 account does not have the required permissions to connect to the customer tenant.

Cause: Your GDAP relationship may be missing the appropriate roles, or your account is not in the correct security group tied to the relationship.

Resolution

Check and resolve your partner relationship configuration:

• Ensure the GDAP relationship exists for the customer tenant
• Confirm that the security group used in the GDAP relationship includes your Sync 365 delegated admin account
• Make sure the security group has the following roles:
  • Application Administrator
  • Global Reader

Step-by-step instructions here: Checking your GDAP relationship