Error : Please verify that the transaction is already existing in the QuickBooks
This article applies to users of Webgility Desktop or Webgility Online who integrate with QuickBooks Desktop. You may encounter the error message “Please verify that the transaction is already existing in QuickBooks” when attempting to post or sync an order. This typically indicates that a transaction (such as an invoice or sales receipt) for the same order already exists in your connected QuickBooks company file, causing a duplication conflict.
Error Message:
Error : Please verify that the transaction is already existing in the quickbooks
Common Causes of the above listed error
The order was redownloaded without performing the undo sync from Webgility Desktop application.
Step-by-Step Guide to Fix Error:
1. Confirm the Current Version -
Make sure that application is to be on the latest version.
2.Verify the transaction type posting settings in Quickbooks -
Go into sync settings>Acconting/POS/ERP>Orders>Look for type of transactions used while posting order. (Mostly invoice)
3.Open Quickbooks and locate the order having issue (Mostly invoice) -
Once identified, open QuickBooks and goto Edit > Select the Transaction type (ex. Invoice) and then transaction no. in the Invoide No. field and click on Search. You can also search the invoice by putting the amount as well.


4.Remove that transaction -
Once the transaction is identified delete that transaction from quickbooks.

5.Redownload order again from online store and attempt to post:
Upon deletion of transaction from Quickbooks, go back to Webgility Desktop and re-download the order and this should now post the order in question and resolve the conflict.