Recently I was using Office 2016 to save to a new location that I’d never saved to previously. Unfortunately, it turns out I was already connected to a large number of services (as I work as a consultant and am often working on many projects at once). Before I could connect to a new service, I had to first disconnect from an existing service.
Now, I can’t understand why there’s a limit to the number of services you can connect to (or why the limit is so absurdly low), but the problem remains, and as such, I had to remove one of my office connections.
To demonstrate, I was seeing the following error message.
In order to resolve this, you first need to go to the File menu (note that you can do this Word, OneNote, Excel, it doesn’t really matter, they’ll all work).
Then choose the “Account” tab on the left, and under the heading “Connected Services” you’ll have to decide on a service you wish to disconnect.
By clicking “Remove” above, you’ll get prompted for confirmation before the connection is severed.
That’s all there is to it. Once you’ve disconnected the service, you can then connect to a new service.