Use case :
- you sell a product on the internet and the customer pays before you already knows.
the best easy way for the tryton user is :
1 do the invoice
2 marked it paid
3 print the invoice
these is simple logical steps. but there is no way to print the payments line in the invoice so you send an invoice and you can’t write it is paid or not.
- another use case you have conditions of payments says
50% when you buy and 50% in 30 days.
in the invoice it is easy to print the payments conditions BUT on the invoice is like the customer did not pay the 1st part.