(Use Case) Restrict Bundling to Products from the Same Vendor

This is a configuration example for restricting bundling so that only eligible items from the same vendor can be purchased together.

Use case

Use this in marketplace-style stores with multiple vendors, when you want to allow customers to purchase only products from the same vendor in a single order.

Result

The following behavior applies based on the cart contents:

Eligible items from Vendor A only → Allowed
Eligible items from Vendor A + other eligible items from Vendor A → Allowed
Eligible items from Vendor A + eligible items from Vendor B → Not allowed
Eligible items + non-eligible items → Not allowed

Configuration example

Field	Value
① Title	Enter any title
② Limit details > Bundle limit level	Same vendor
③ Eligible items	Set the products you want to restrict
⑤ Product message	Enter any message
⑥ Alert message > Display timing	Cart updated and checkout
⑥ Alert message > Message	Enter any message

Configuration tips

Setting Bundle limit level to Same vendor allows only eligible items that share the same Vendor field in Shopify to be purchased together.
If even one eligible item from a different vendor is mixed in the cart, an error will occur.
Purchasing eligible items together with non-eligible items will also result in an error.