Applies to Already Discounted Prices decides whether a coupon also comes off prices that are already discounted, such as a club member's price, a 6-bottle price, a sale price or a customer group price.
No (the default): the customer gets whichever is cheaper, the coupon or the price they already have. They never get both.
Yes: the coupon comes off the already discounted price, so the customer gets both discounts.
Examples
A Rosé is $28. Club members get 15% off, so they pay $23.80. The coupon is 10% off.
No: the coupon would make the Rosé $25.20, which is more than the club price, so the club member keeps $23.80. The coupon gives them no extra discount.
Yes: the club member pays $23.80 less 10% = $21.42.
A Shiraz is $45, or $195 for 6. The coupon is 10% off.
No: a customer buying 6 pays $195. 10% off $45 is $40.50 a bottle, which is more than $32.50 a bottle in the 6-pack, so the coupon gives no extra discount.
Yes: the customer pays $195 less 10% = $175.50.
Why this setting needs care
When Yes is set, discounts stack. Club members, trade customers and anyone buying at a 6-bottle price get the coupon on top of their existing discount. This is the most common reason a customer gets a much bigger discount than you expected. Combined with Auto apply, every qualifying order gets the extra discount without anyone entering a code.
Use Yes only when you deliberately want everyone, including club members, to get the extra discount, for example a members' bonus weekend. Give these coupons an end date. See How to make a coupon stop automatically
Steps
Go to Settings > Coupons and open the coupon.
Set Applies to Already Discounted Prices to Yes or No.
Click Save.
What happens next
The change applies to new orders straight away. The coupon list shows the setting in the Applies to Discounted Prices column, so you can check all your coupons at a glance.
Troubleshooting
A club member's coupon gives no discount: the setting is No and their club price is already cheaper than the coupon. This is expected.
A club member got a much bigger discount: the setting is Yes. See Why did a customer get a bigger discount than expected?