Apply unique discount amounts to each cart line

Retired Boards Appdev Functions
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1

Question, I have the classic situation where I want to do the 2 for $25 discounts.

I can do this in Shopify Scripts (though they time out). I can have some products (with identifying tags maybe ‘2FOR25’) that have various prices, some might be $30, some might $15, I want quantities of two discounted to $12.50.

I know the API now allows line items to be targeted for quantities, so if I have say quantity of three on line item 1 in the cart I can discount only two. That’s great.

But can I have each line item to be discounted have its own unique discount amount per line item? [I figure I can get the price of each line item, and from there figure out the discount amount]. But I don’t know if it is even possible to send each line item for a unique (different) discount amount?

Is this possible? [I cannot change the prices to be uniform before discounting.]

Please let me know, thanks!

2

If you want to apply different discounts to different line items, you can use DiscountApplicationStrategy.ALL and return an array of discounts as the result of your function.

https://shopify.dev/docs/api/functions/reference/product-discounts/graphql/common-objects/discountapplicationstrategy