How do I resolve the message "app1/app2: We couldn't authenticate this account"?

Ing. Oliver Baltz

Cause

The problem is that a previously stored account can no longer read/write to your software to synchronize your contacts.

App	Error Code	Reason
Microsoft 365	130504	The authentication was carried out with a Temporary Access Pass (TAP) which has by now expired.

General solution

1. Delete the connection (your contacts remain untouched).

2. Disconnect the affected account via this page.

3. Create a new connection. The affected account will be able to be reconnected.

Special solutions

"Microsoft 365" Account: maybe the user has two-factor authentication enabled afterwards. This requires a re-connection of the account.