QBO Error: Payment error Can't export Payment. Attempt to add QBO Payment has failed with: Validation Exception TxnID Cannot Be LinkedLast updated on 05/12/2023

In order to resolve this error:

1. Check QuickBooks Online and ServiceTitan to make sure that the Invoice details in QBO match exactly the Invoice details in ST(Customer, amount, date, tax, line items, etc). 

2. If that is confirmed and will not export, bypass the payment in ST and manually add it to QBO.

3. To manually add the payment in QBO: 

   1. From the QuickBooks Home page or the Customers menu, select Receive Payment.

   2. In the Received From in the drop-down, select the customer's name.

   3. Enter the Amount received.

   4. Make sure the date is correct, then choose the Payment method.

   5. Select the invoice or invoices you'd like to pay.

   6. To add a discount or credit, select Discounts, and Credits.

   7. Select Save & Close.

4. On the Accounting Page, pull up the Batch with the error > Right Click + Reload anywhere on the screen to hard refresh the page > export the Batch.