MPOS

1. MainStore/SubStore, supports the configuration of Discount Promo. When applying the discount on the whole bill or item, the staff at the Staff Terminal can select the Discount Promo campaigns that have been configured in the backend
2. The Set Meal function adds on the feature: the unpublished sub-item whether to affect the order of the set meal
3. The Set Meal function supports the [Product optional quantity] of a group that is selected by range and can be fill-in 0