Assign Quote to BigCommerce Order
Associates an existing BigCommerce order with a specific quote based on the provided `quote_id`. In order to successfully assign a quote to an order, it must be in the Open status.
This endpoint **does not** convert an unpurchased quote into a new BigCommerce order.
The endpoint updates the existing order with the shipping and tax information provided in the request.
Equivalent Storefront GraphQL API Mutation: `quoteOrdered`.