Copy of RDS to DR target account may fail with Reason code: Unable to create the resource. Verify that you have permission to create service linked role.
DR copy job may fail with the following error:
Error: RDS DR copy failed for region EU Paris (any region can apply) with reason code: Unable to create the resource. Verify that you have permission to create service-linked role. Otherwise, wait and try again later (InvalidParameterValue)
Follow the Note for this error in AWS Article
Then retry the policy and it should be successful.