Why the Sync Error occurs

This error occurs when a payment has a reference number (Ref#) that is already in use in QuickBooks or a payment for multiple invoices has a Ref#.

How to Fix the Sync Error

There are two options to resolve this issue:

• If the issue is due to a single invoice, edit the payment to update the Ref# to a unique number

• If the issue is due to multiple invoices, edit the payment to remove the Ref#