Cart Transform Function API overview

• Display multiple line items as a single bundle.
• Display BOGO (Buy One Get One) lines as a single line.
• Expand a bundle line into its components. For example, a bikini in a bundle line item gets expanded into two line items: a bikini top and a bikini bottom.
• Add a free gift to a product.

The following limitations apply to bundle apps.

Some store configurations and customizations, such as with specific apps, make the store incompatible with bundles:

• checkout.liquid customizations aren't compatible with bundles.
• Shopify Scripts aren't compatible with bundles. If you publish a script, then bundles are moved to a draft status. To sell products in a bundle again, you must unpublish the script.
• Bundles can be sold through only the Online Store sales channel. Bundles can’t be sold through Shopify Point of Sale or with selling plans.
• Some apps and payment gateways aren't compatible with bundles.

You can use the BundlesFeature GraphQL object to determine whether a store is eligible for bundles. If the store isn't eligible for bundles, then Shopify prevents you from publishing bundled products to sales channels.

If you implement customized bundles using the Cart Transform Function API, and the parent variant can't be purchased without components, then you must mark the parent bundles with the requiresComponents attribute to true.

• All plans: Stores on any plan can use public apps that are distributed through the Shopify App Store and contain Shopify Functions.

• Shopify Plus: Only stores on a Shopify Plus plan can use custom apps that contain Shopify Function APIs.

• Learn how to use Shopify Functions to create bundles.