Sorting Cart Items in OCC

Summary:

We need a solution to implement custom sorting of shopping cart items according to specific business requirements that persists at the backend level.

Content (please ensure you mask any confidential information):

While UI-based sorting via custom properties is possible, it suffers from poor performance and critically doesn't alter the item order from the OCC Back-end perspective. API responses for orders and carts continue to return items in their original sequence regardless of UI changes. I've attempted multiple update calls to Order objects with modified item positions, but these efforts yielded no changes to the underlying order. OCC appears to ignore cart item sequencing instructions altogether.