Currently, when customers want to change a variant of a product already added to the shopping basket — for example, choosing a different size or color — they are required to leave the basket or checkout and navigate back to the product detail page. This process interrupts the purchasing flow and increases the likelihood of order cancellations or customer frustration.

With this enhancement, customers should be able to easily modify product variants directly from the basket or checkout interface.

Functional Proposal:

Add a variant selector for each product line item in the shopping basket and checkout.

When a customer changes a variant, the system automatically updates the line item’s price, stock information, and product image accordingly.