Issue with multi-factor authentication

[TobiasBitter]

Since the activation of MFA I'm getting this error:
Token request for microsoft_graph failed (invalid_grant): AADSTS50076: Due to a configuration change made by your administrator, or because you moved to a new location, you must use multi-factor authentication to access...

Any chance to run this integration with MFA enabled?

[geoffreylagaisse]

Strange should work. We also have MFA enabled on our tenant and I was able to receive the authentication token from Microsoft.
Did you remove the integration and re-added it again after the activation of MFA?
Your security/authentication token could have become invalid at that point.