- Discount application strategy decides what happens inside one discount, when several of its campaigns could apply.
- Combinations decide whether this discount can stack with other discounts on the store.

Discount application strategy
Set in the side panel of the campaign form.Combinations
Under Combinations, tick which other kinds of discount this one may combine with: product, order and shipping discounts. These are Shopify’s own combination settings, so they work the same way as for discounts you create in the Shopify admin.Both discounts have to allow the combination. If this discount combines with order discounts but the other order discount does not combine with product discounts, Shopify applies only one of them.