Powershell Error Crit - multi-factor authentication

The following error may occur on an o365 Test, Discovery or Sync.

Powershell Error Crit | 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 '00000002-0000-0ff1-ce00-000000000000'.

This error will occur if the o365 account used in your UnitySync connection has two factor authentication (2FA) enabled.

UnitySync processes run unattended. Therefor, the User Account used by the connection may not have MFA enabled.

You must disable 2FA on the o365 account used by UnitySync, or exclude the user from your 2FA requirement.