QuickBooks Error Message: Invalid Argument. The Specified Record Does Not Exist In The List
When syncing an invoice or bill to QB you may get an error message indicating that a customer, item or vendor was not found in the list OR invalid argument.
1. Either the entity doesn't exist in QuickBooks, (create it) you can manually create it or make a small change and push it back into the sync queue.
2. It exists but is not the same. It could be the spelling/spacing or it could me something that is selected from a drop-down.
(Typically an account)
3) Do another synchronization
How to Manually Run an Accounting Sync Job between QuickBooks Desktop and Order Time
4) Now reopen the customer, item or vendor, edit it if needed and save