Set Payment Method
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 | Purpose |
|---|---|---|
setPaymentMethodAdminCart(input) | Mutation | Save the chosen payment method on the draft cart |
Errors
| Cause | Notes |
|---|---|
| 409 — shipping missing | Select a shipping method first |
| 400 — method missing | Input must include method |
| 403 — active storefront cart | Only draft carts can be modified |
| Unauthenticated | Missing admin Bearer token |