My approvals have been working fine of late but sometimes the user clicks Approve and then clicks submit and the screen says 'working on it'
And after 15 seconds or so says An error occurred and the approval isn't submitted. There are 600 items in the SharePoint list, not sure if there's a limit?
This is in the desktop version of Outlook and doesn't seem as bad when using Office 365 and the cloud app. Also, the app on a phone seems more stable. Anyone got any ideas?
Could it be to do with safe sender emails?
I got this and allowed it: