Only one alternative payee is permitted on draft invoice so we can copy it only if there is only one and it is the one that was already set when posting the invoice (only party that appears in the lines to pay). Closes #12528
###################### Account Invoice Module ###################### The *Account Invoice Module* adds the concept of invoicing to Tryton. It allows the creation of customer and supplier invoices, and can handle the payment terms related to the invoices and show when they have been paid. .. toctree:: :maxdepth: 2 usage/index configuration design releases