OneDrive: Sync Delay – You may be experiencing a temporary sync delay due to high service activity

If you transferred more than 500GB of data with OneDrive per day you will likely reach a OneDrive client limit.

To fix this problem, you can increase the limit editing the OneDrive configuration file ClientPolicy.ini

Configuration file for OneDrive for Personal:

C:\Users\AppData\Local\Microsoft\OneDrive\settings\Personal\ClientPolicy.ini.> MaxClient MBTransferredPerDay = 537600

Configuration file for OneDrive for Business C:\Users\AppData\Local\Microsoft\OneDrive\settings\Business1\ClientPolicy.ini.> MaxClien tMBTransferredPerDay = 537600

Open the file corresponding to your OneDrive client version and increase the parameter MaxClientMBTransferredPerDay