sales-skills/salesDrupal Commerce platform help — the open-source (GPL) commerce framework built on Drupal/PHP (drupalcommerce.org, by Centarro): stores, products/variations, orders, carts, checkout, payments, and promotions as Drupal entities, exposed headlessly through core JSON:API (UUID-addressed, page[offset]/page[limit] paging) plus the Commerce Cart API module (cart tokens, add/update items, checkout, Commerce-Current-Store header, order-transition webhooks). Auth via Simple OAuth (Bearer), Basic, or JWT. Use when building a headless/decoupled Drupal Commerce storefront, fixing add-to-cart failing over JSON:API without granting anonymous users admin-store permission, authenticating with Simple OAuth, wiring orders into a CRM or warehouse, reacting to an order state transition, or choosing Drupal Commerce vs Shopify/Magento/WooCommerce for a content-heavy store. Do NOT use for cross-cart checkout strategy (use /sales-checkout) or picking a Merchant of Record for global tax (use /sales-merchant-of-record).