Hi @Jacco Dominicus ,
Welcome and thanks for your feedback.
I did some research about the situation you mentioned and it seems that Microsoft already has a KB for it, in which it says this only affects the way that the setting is displayed in GPMC. Actually, the Cached Exchange Mode Sync Setting policy works correctly as it's configured.
It also provides an workaround that you could configure the cache mode setting by using the SyncWindowSetting
and the SyncWindowSettingDays
registry keys.
For more specific information, please check: Outlook Cached Exchange Mode Sync Setting is displayed incorrectly in GPMC.
Hope this can be helpful.
If an Answer is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.