OneDrive Mac App stuck on "Preparing to upload" or "Processing Changes

amaumexia Check if this issue is because you are syncing too many files at once? We have a limitation: https://support.microsoft.com/en-us/office/restrictions-and-limitations-in-onedrive-and-sharepoint-64883a5d-228e-48f5-b3d2-eb39e07630fa#synctoomany

1.Perform OneDrive Reset: https://support.microsoft.com/en-us/office/reset-onedrive-34701e00-bf7b-42db-b960-84905399050c#ID0EBH=Mac

(Perform below steps if step 1 does not resolve your problem.)
 

2. Delete keychain,

MAC by Finder > Go > Go to folder >  ~/Library/CloudStorage/*

Open OneDrive -> Delete items (top right corner button in file explorer)

3. Clear /Users/username/Library/Group Containers
a. Unlink all libraries in OneDrive.
b. Delete the folders xxxx.OneDriveStandaloneSuite and xxx.OneDriveSyncIntegration
c. Delete them from Trash as well.

4. Follow article to clear .DSStore cache: https://support.microsoft.com/en-us/office/fix-onedrive-sync-problems-on-a-mac-af3012d7-13ec-4ac9-bbb1-ebcd2a0cd756?ui=en-us&rs=en-us&ad=us

https://support.microsoft.com/en-us/office/remove-ds-store-files-on-macos-d2f8dca0-740a-4f7e-89b9-5b2cbbc50386

Clear cache of local machine on MAC by Finder > Go > Go to folder >  ~/Library/Caches > Remove all files/folders

Now navigate to Finder > Computer > Mac HD > Library > Caches > Remove all files folder