Is this coming from Sims4?

ee7154b6c3e70698​  Those files probably are from Sims 4, and they're probably completely useless all the time and can be deleted without consequences.  The game creates a lot of temp files that it deletes on its own, but the files are stored in Documents while they exist.  So as you're playing, OneDrive has the chance to sync these files.

Files you wouldn't want to delete are saves (start with Slot_), Tray files, and possibly mods and custom content.

One workaround here is to pause OneDrive syncing as you're playing.  You could resume afterwards and let it sync anything the game doesn't delete but keep it away from the temp files.

If you want to change your OneDrive configuration in some way, please see the first post of this thread:

[CURRENT ISSUE] Sims 4 saves/user content disappearing (PC) | EA Forums - 11838402

I have been having the same thing happening for about a week now. IDK why it started showing up all of a sudden? My computer is newish (couple months old), but I've been playing The Sims 4 since day one of having it. And these notifications keep popping up and never had this happen before on other computers

Thanks for the reply. One thing I didn't think to try before making my OP was to run a search for one of the files. I did that for both the laptop as well as my OneDrive and found nothing was found.

Have you deleted or kept the files?

ee7154b6c3e70698​  As I said, the files are temp files that the game creates when you have a save loaded and then deletes when you quit.  OneDrive may delete them accordingly even if you choose to keep them because it's simply trying to mirror what's on your computer.

Carizzard​  You might only see the message now because OneDrive is full enough to need to delete some data.  You can check your free and total cloud storage by right-clicking the cloud icon in the lower-right corner of the screen and selecting Settings > Account.

I ultimately deleted the files and have not noticed any issues since then.