Fix AADSTS700003 - Device Object Not Found

AADSTS700003 – Device Object Not Found in Tenant

Error: AADSTS700003 – Device object was not found in the tenant

This error occurs when the device originally used for delegated admin access has been deleted from your directory.


Cause: If the Azure AD device associated with your delegated admin account is removed, the token chain breaks and access fails.

Resolution

Grant partner center consent again using your admin account:

  1. Log into Sync 365
  2. Go to Company → Delegated admin tab
  3. Note the currently used account (do not delete it)
  4. Click Add → Grant partner center consent
  5. Login using the delegated admin account that’s active in Sync 365
  6. Ensure you’re prompted for MFA during login — required for Partner Center access
  7. Once complete, the token will be refreshed and the issue resolved