Here is client policy retrieval flow.
1. Policy is triggered and makes a request to MP to check for new settings. If there are no new settings, process ends here.
2. MP_policy manager requests policy body from MP_getpolicy
3. “MP get policy” get new settings from SCCM Database and sends it back to Management Point.
4. Policy is downloaded by Data transfer Services to client.
5. Policy is moved to c:\windows\cmm\temp and get complied.
6. Update WMI with new settings.