applyDiscountCodes

mutation

Requires one of commerce.order:create, commerce.order:update, commerce.order:cancel, or commerce.order:complete (use the scope that matches the operation).

Apply a discount to an existing order

Required headers

Header	Required	Description
`x-store-id`	Yes	ID of the store the operation targets. Omitting it returns HTTP 200 with a GraphQL error: `extensions.code: "UNAUTHENTICATED"`.

Go to Authentication for credential setup.

Arguments

input ApplyDiscountCodesInput! required
- discountCodes [String!]! required
- orderId ID! required — Global ID in format Order_\<KSUID\>

Possible returns

Order Order

mutation RunApplyDiscountCodes($input: ApplyDiscountCodesInput!) {  applyDiscountCodes(input: $input) {    id    createdAt    updatedAt    externalId    cartId    number  }}

{  "data": {    "applyDiscountCodes": {      "id": "ID_VALUE",      "createdAt": "2026-01-15T12:00:00.000Z",      "updatedAt": "2026-01-15T12:00:00.000Z",      "externalId": "EXTERNAL_ID",      "cartId": "CART_ID",      "number": "NUMBER_VALUE"    }  }}

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