Process all items in the cart at once

[wisniewski94]

Hello,

I was checking how the fulfillment constraints API works and I think it's awesome! However, there's one aspect that I believe could be improved. Currently, items are marked as non-fulfillable one by one rather than all at once. Let me illustrate with an example scenario:

Imagine a cart containing two items:

A (non-fulfillable)
B (non-fulfillable)
Upon attempting to proceed to Shipping, I receive a notification indicating:

No delivery available for 1 item
This item will be removed from your cart because there are no delivery methods available for your address.

When I choose to proceed with the removal, I encounter another message stating that the order cannot be processed. While this may not be a significant issue for smaller orders, I believe it could potentially lead to a poorer user experience with larger carts.

Thanks