Take note that Mix & Match Promotion will not discount more than the Receipt Subtotal amount. (Will not discount the Total amount to be below 0 or negative amount.) For example:
Item A price: RM 2.50
Multi Qty price (Qty>=10): RM 1.00
Mix & Match Promotion: Discount RM 2.00/Qty
If the client buys 10 of Item A, due to the discount from Multi Qty Price the Subtotal will only be RM 10.00, the Mix & Match Promotion will only be allowed to discount up to RM 10.00 instead of the full RM 20.00 to prevent a negative Total amount.
This is to prevent the company from incurring losses due to overlapping discounts with Mix & Match Promotion.