Get a single order by ID, including its line items, charges, invoices, returns, delivery/fulfillment details, and custom field values — the same object returned in each entry of GET /public/v1/orders and in the upsert response. An ID that doesn't exist, or belongs to another company, returns a not-found error.

Note: this endpoint returns eventually consistent data — a write can take up to 1 second to be reflected here, so an order you just upserted may briefly read back with its previous values.

Required permission: orders_permissions_view. An order the authenticated user's team restrictions hide returns 403.