There was an error when saving a Invoice. QuickBooks error message: The transaction is empty.
The invoice you are attempting to post to QuickBooks has no inventory or line items associated to the record.
Find the record being affected. First, check to make sure the invoice has a line item. Second, if there is an item, and it is an assembly, make sure the assembly has sub items. Typically if it is an assembly, and this error is happening, it is because the assembly has no sub items.