Forum Discussion
Word for Mac Office Add-ins authentication fails, but works in Word Online
I have received advice from the Word Product Team at Microsoft that the issue has now been resolved with a change on the service side.
A small number of users may still see the issue if their device is using cached credentials. They can work-around the issue by signing-out and back in or waiting for the token to expire.
I am a Windows user and unfamiliar with Claude for Word.
Is this a Microsoft Store app?
Have you contacted the company that produces Claude?
Hi! Yes, Claude for Microsoft 365's an Office add-in available through Microsoft Marketplace and installs directly within Word. I had also contacted Claude/Anthropic Support, while Microsoft Support investigated the Office side.
The issue has now thankfully been resolved—Microsoft apparently confirmed that a service-side change was made (and Claude for Word started working normally again without any further changes on my end).
Thanks for taking the time to reply!
