Shipping Discount Functions Can't See Bundled Products in the Cart

Has anybody else noticed that if a bundle (from the Shopify Bundles app) is in the cart, it is missing from Shopify Functions input?

For example, if the only item in the cart is a bundle, cart.deliveryGroups.cartLines is an empty array.

If there are 3 products in the cart, and one is a bundle, cart.deliveryGroups.cartLines will contain only the 2 non-bundle products.

8 separate merchants have reported this issue to us.

My team reached out to Shopify Partners support in September, and they told us, “it seems like the issue highlighted is a known issue that our developers are aware of and working to fix.” Is there an existing thread about this that I can subscribe to?

Thanks in advance.

We are experiencing the exact same issue.

When a bundle product (from the Shopify Bundles app) is included in the cart, it is completely excluded from cart.deliveryGroups[].cartLines in the Shopify Functions input. This makes it impossible to perform accurate calculations per delivery group.

Specifically, our use case requires:

  • Calculating the total item count per delivery group

  • Calculating the total amount per delivery group

This issue was reportedly acknowledged as a known issue back in September 2024. It has now been well over a year — is there any update on a timeline for a fix?

This is a critical blocker for any Shopify Functions implementation that relies on accurate delivery group data. We would greatly appreciate visibility into the progress on this.

I had a merchant bring this to our attention - I may be wrong, but I thought it used to work. The cart.deliverableLines will show the products, but that lacks cost amounts and doesn’t support “split shipping” if you need that level of detail.