# A bundle step shows no products

> Why a Mix & Match step can go empty, how the app warns you, and how to fix it.

Source: https://help.attravo.com/bundle-builder/articles/a-bundle-step-shows-no-products
Updated: 2026-10-06

Each step in a Mix & Match bundle shows the products of one collection. A step goes empty when shoppers can't see that collection or its products.

## How the app warns you

The **Bundles** page shows a warning when any step has nothing to pick:

![The Bundles page warning about bundle steps](https://xprvgpfulbcxrftgyppu.supabase.co/storage/v1/object/public/help-media/5d8df30e-32a3-4311-b03c-158adc08841b/12cf6fe9-057e-41ee-be3a-61ba6247a821/empty-step-1-banner-76526e9680.webp#w=2028&h=360)

Open the bundle to see which step is affected and why. The step explains what happened to its collection:

![A step warning that its collection isn't on the online store](https://xprvgpfulbcxrftgyppu.supabase.co/storage/v1/object/public/help-media/5d8df30e-32a3-4311-b03c-158adc08841b/12cf6fe9-057e-41ee-be3a-61ba6247a821/empty-step-2-step-warning-ecc0923852.webp#w=1432&h=1004)

## Fix it

The warning names one of three causes:

- **The collection isn't available on your online store.** In Shopify admin, open the collection and make it available to the **Online Store** sales channel. Or click **Change collection** in the step and pick another.
- **The collection has no products shoppers can see.** Add products to it, or make its products available on the **Online Store** sales channel.
- **The collection was deleted.** Click **Change collection** and pick another. If you set up a redirect from the old collection's address, the step offers to use the collection it now points to.

Click **Save** after changing a step.

> [!NOTE]
> On your storefront, an empty step is hidden and the other steps are renumbered, so shoppers can still complete the bundle. If you rename a collection's address, the app updates the step for you.