I am trying to add a new detail line to an existing sales order. I add the line in salesorderlinedetail and assigned the TxnID of the parent to the IDKEY field. I have tried setting the Status of the parent to “ADD” and also to “UPDATE” with no success. There error I get is:
There was an error adding, modifying or deleting 505C-1581005634 because it is already in use. QuickBooks error message: The transaction could not be locked. It is in use by another user.