Apply a Coupon
GraphQL counterpart of POST /api/admin/carts/{id}/coupon. Mutation field is applyCouponAdminCart.
Prerequisites
The example uses an illustrative cart id. Admin cart endpoints only operate on draft carts (is_active=0) — storefront carts are rejected by the admin cart guard. Create a draft cart first with the createAdminDraftCart mutation and use the returned cartId.
Operation
| Operation | Type |
|---|---|
applyCouponAdminCart(input: applyCouponAdminCartInput!) | Mutation |