Sync issues
Diagnose and recover from failed syncs.
Microsoft syncs are failing — directory access lost
What to do when RingSync can no longer query your Microsoft Entra ID directory and every sync fails.
Sync is stuck at 0% or shows zero contacts
Three common causes for a sync that starts but immediately reports zero contacts processed, and how to diagnose each one.
Contacts are missing on a specific device
Steps to identify why contacts from a synced directory do not appear on a user's phone.