Main issue: Implementing Shopify discounts via the Product Discount API and the Shipping Discount API. When both are active, the shipping discount does not apply; it only works if the product discount is disabled.
Observed behavior: Both discounts show a combine field value like “Not set to combine,” indicating they are not combining/stacking.
Impact: Users cannot have a product discount and a shipping discount applied at the same time.
Request: Guidance on how to fix the combination issue so both discounts can be active concurrently.
Status: No solution or workaround provided yet. Discussion remains open.
Key unanswered questions:
Hello,
I am currently implementing discounts using shopify product discount api and shopify shipping discount api.
But when I set both of them active, shipping discount api does not work, it only works when i disable product discount api.
When I try combining those 2 discounts they have sth like “Not set to combine” in their combine field.
Please help me fix this tricky issue.
Thank you