According to https://docs.microsoft.com/en-us/office365/servicedescriptions/sharepoint-online-service-description... there is a limit of 5,000 items when syncing a SharePoint library using the OneDrive sync client. What isn't mentioned there is what happens when someone tries. We have a group whose Document library in their team site has over 42,000 items. Recently, one of the members of that group reported that files were being deleted by OneDrive. Sure enough, the Recycle bin in the site had thousands of entries, many duplicates of the same file apparently being deleted multiple times over the course of hours or days. I'm trying to piece together what happened (waiting for the admins to provide an audit log report). I didn't realize until after requesting that report that the library had so many files in it.
So, does anyone know what actually happens when someone tries to sync a library with more than 5,000 items? I kind of assumed it would just stop and only sync the first 5,000, but don't know for sure. I'm using Power Automate to generate a really big library to test for myself, but if someone has already done that, I'd appreciate the feedback.
