...
By default, the POS has the option to make products getting returned as Non-Resalable by clicking on the pencil on the product line (1), and then selecting “Non Resalable” (2).
...
Force Clerk to
...
Answer if Product goes back to Stock or Not
There is a second option that can be enabled on a per device basis that will force a clerk to have to specify whether each product is getting returned to stock or if the product is getting marked as non resalable.
...