[Demo] Exception Products (Letter) | Can only be combined with items of the same shipping type

Product Overview

This product is registered as an excluded product for items that are controlled to be combined only with the same shipping type.

Store items with room temperature shipping (shoes and clothing) can be purchased together with other room temperature items and excluded products, but cannot be purchased together with items of different shipping types such as frozen shipping products (meat and crab) or refrigerated shipping products (milk and chocolate).

However, exception products (catalogs and letters) can be combined regardless of shipping type.