The extended total of the invoice line items (price * quantity for all of the invoice lines) in the Transact file does not match the value in the Subtotal field in the Invoices file. This usually occurs when a line item in the Transact file is deleted or edited in the off line editor for the file and the Invoices (Invoice Header) record is not updated properly to reflect the change. To correct the error, you should make sure that all invoice line items are present in the line item file and edit the Subtotal field in the Invoices file to correct the error.