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The error occurs will come when you sync syncing the payments from Salesforce salesforce to QuickbooksQucikbooks.

Reason:

The sync error is related to a Payment Received - (1) , either the invoice in QuickBooks has payments applied (Paid status) ; (2) or the Accounts Receivable account associated with the invoice in QuickBooks has changed. 

Solution:

If the invoice has a status of Paid in QuickBooks( if you have applied the payments manually and then syncing ):

Delete the payment(s) in QuickBooks and rerun the sync(If they applied manually). Once done, you should not won’t get that error.

If the Accounts Receivable account associated with the invoice in QuickBooks is different than the account listed in your Sync Preferences:

Edit the sync preferences to match the AR account used on the invoice.

-OR-

Edit the AR account on the invoice to match the AR account used in sync preferences.