You will often see the below error or similar in SCCM: MP has rejected a policy request from GUID:2904FFA9-C49D-48B3-BE9B-D4B4FFEF7C96 because it was not approved. The operating system reported error 2147942405: Access is denied. I have written a SCCM report to pull back the resource name so you can then go and approve it or investigate [...]