AADSTS50076 – MFA Required Due to Location or Policy Change

Error: 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

This error is raised when Microsoft detects a change in MFA posture — such as an admin resetting MFA, user changing password, or logging in from a new location/device.

Cause: When MFA is reset or re-evaluated, Microsoft invalidates old tokens. Sync 365 then fails to authenticate until a new MFA-compliant token is issued.

Resolution

To resolve this, re-consent the delegated admin account so a fresh token is issued:

1. Login to Sync 365
2. Go to Company → Delegated admin tab
3. Take note of the currently active account (do not delete it)
4. Click Add → Grant partner center consent
5. Log in with the delegated admin account
6. Ensure that you are prompted for MFA — this is required for Partner Center token refresh

Once consent completes, the error should clear automatically.