Using Outlook for Android in business environments for email and scheduling
Hi all, I was having the same issue on my Samsung S23 and missed some appointments as a result. Very frustrating.
As suggested previously, I also set battery usage to Unrestricted and also disabled "Remove permissions if app is unused" (screenshot below), along with syncing Contacts and that seems to be working for me at the moment for not having the calendar sync turn off automatically.
(Edit: I tried turning off Contacts sync a few days later and almost immediately, the Calendar sync unchecked as well. Be sure to sync BOTH Calendar and Contacts for this workaround to work)
I set the Outlook battery setting to Unrestricted a couple days ago. So far, the calendars have stayed synced to my device. I'm not ready to declare victory quite yet but am interested to know if anyone else has done this. If so, are you still seeing the calendar sync toggle turn off?