Create Payment Access Token

Use this endpoint to create a payment access token. A payment access token is required to process payments with the BigCommerce API. You can also generate a payment access token during checkout by using the `completeCheckout` mutation in the [GraphQL Storefront API](/docs/storefront/cart-checkout/guide/graphql-storefront#handling-payments). After the token is created, use the token to [Process a payment](/docs/rest-payments/processing#process-payment). **Required Fields** * order_id