There are 2 stores, products from each store are added to cart, therefor there are two carts:
But how to checkout these 2 carts at once:
For example Etsy, clicking 'Proceed to checkout' will checkout the 2 carts at once.
maciej.zgadzaj's Commerce Marketplace module introduced a concept of order group for Commerce 1.x, so that multiple order can be processed together.
Marketplace introduces concept of an order group (adding a property of the same name to the order object),so that it knows which multiple orders need to be processed together:
Is there any idea or suggestion to process multiple orders at once for Commerce 2.x?