Reservation on POS

Feature
1

Rationale

Some businesses are using POS, but they do not always have the products on hand. For example, it is frequent in pharmacies that they are missing some drugs from a prescription, but they will order them from the supplier for the afternoon or the next day.
Such businesses need a way to reserve those products (to be supplied) and keep track of them to finish the sale later.

Proposal

In a new module sale_point_reservation:

  • on sale, we add a Float field quantity_on_hold which stores the quantity not delivered.
  • a state ‘On Hold’ is added between “Open” and “Done” (available only if there is some quantity on hold). It sets a number to the sale and creates draft stock moves for the lines (which are deleted if reset to “Open” or cancel).
  • a wizard is added to the line to decrease the quantity_on_hold of the delivered or not delivered quantity. And the reservation stock move is updated accordingly.
  • the amount_to_pay does not include the quantity on hold.
  • the sale is forbidden to go to “Done” until all the quantity on hold is delivered.
  • a delay is configured and a deadline is set to keep the reservation. A scheduled task removes the reservation when it is passed.

Implementation