This POS option in Options Configuration determines the maximum amount of promotional discount permissible on a POS transaction. Values can be from 0 to 100. Set this option to the desired maximum amount.
If you don't want to allow a promo discount, set this option to 0. If you want an unlimited promo discount percentage threshold, set this option to 100.
This option defaults to 10 (maximum 10% promo discount).
Allowable "Kept by" methods are System (which is the default), Store, Terminal, or User.