QuickBooks for Windows Sync Error: Another Active Sync already in Progress or Another active Session in progress

Why the Sync Error occurs

This error is a safeguard to prevent multiple syncs against the same QuickBooks file at the same time, which can cause bad data.

How to Fix the Sync Error

  • This error message has a timeout set for 20 minutes. Wait at least 20 minutes and try to sync again.
  • If you are using Right Networks Server, shut down and restart the server to resolve the issue.