---
title: "Bundle Form Errors"
description: "Troubleshooting errors that display as a red or salmon coloured message on the bundle page."
url: https://help.biscuitsbundles.com/en/articles/9798819-bundle-form-errors
collection: "Sold out / Add to cart errors"
updated: 2026-11-05
language: en
---

# Bundle Form Errors

Troubleshooting errors that display as a red or salmon coloured message on the bundle page.

![](https://staticfiles.gleap.io/helpcenter/65b350631ff56ccfb3879048/20260331005941_7741.png)

## Troubleshooting Errors in the Biscuits Bundles Form

Not sure which error you have? Start at [Bundle shows as sold out or won't add to cart - start here](https://help.biscuitsbundles.com/en/articles/14043177-bundle-shows-as-sold-out-or-wont-add-to-cart-start-here.md).

When using the Biscuits Bundles form on a product page, you might encounter errors that prevent user interaction with the form. These errors typically appear when you're setting up a new bundle or making adjustments.

➡ **View error details in the theme editor**

**In the theme editor, you'll see more detailed errors to help identify the specific issue, while storefront users will see more general, user-friendly messages.**

These errors indicate a critical issue with the bundle settings or its component items.

To avoid a failed "Add to Cart" action, the form blocks user interaction until the issue is resolved.

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## _The bundle product cannot be $0_

#### _"This bundle is unable to be added to cart" / "The bundle product cannot be $0"_

For proper bundle pricing, the parent bundle product must not have a price of $0. Biscuits automatically sets the parent product to the minimum possible "Price" and "Compare at price" based on your bundle settings when you save your bundle.

![](https://staticfiles.gleap.io/helpcenter/65b350631ff56ccfb3879048/20260331005941_0344.png)

#### **Solution:**

Ensure the product price is set to a positive value, or adjust your bundle settings in the Biscuits app, and save the bundle again.

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## _A required product in the bundle is sold out_

#### _"The bundle is sold out" / "A required product in the bundle is sold out"_

If a product that is marked as 'required' is sold out, users will not be able to add the bundle to their cart.

![](https://staticfiles.gleap.io/helpcenter/65b350631ff56ccfb3879048/20260331005941_5252.png)

#### **Solution:**

Make sure every _required_ product is available: Active, published to the Online Store, included in all relevant Markets and catalogs, stocked at a serving Location, and covered by a shipping rate. If the bundle is sold out only for **some** customers or countries, see [Sold out for some customers (Markets, Locations, Shipping)](https://help.biscuitsbundles.com/en/articles/14043176-contextual-availability-with-markets-locations-and-shipping.md).

* * *

## _One or more required steps have no available products_

#### _"The bundle is sold out" / "One or more required steps have no available products"_

If all products within a required step are sold out or are not available, users will not be able to add the bundle to their cart.

This error appears when enough _required_ products, or all products in a _required_ step are not available or sold out.

![](https://staticfiles.gleap.io/helpcenter/65b350631ff56ccfb3879048/20260331005941_4628.png)

**Solution:**

Check that each required step has enough available products to meet its step rules. Each product must meet the same availability requirements as above (Active, Online Store, Markets/catalogs, Location, shipping rate).

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## _Unable to find product add to cart button_

#### _"This bundle is unable to be added to cart" / "Unable to find product add to cart button"_

This error indicates that the Biscuits Bundles form is having trouble detecting your theme's "Add to Cart" button. This issue may require technical support to resolve.

![](https://staticfiles.gleap.io/helpcenter/65b350631ff56ccfb3879048/20260331005941_0175.png)

#### **Solution:**

Ensure your product template still has an add to cart button as Biscuits Bundles uses your themes native add to cart button.

If you are unsure, or you have an add to cart button present but the app cannot detect it, contact us for assistance in resolving this issue.

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## _Multiple Biscuits bundle forms on template_

**_"There are multiple Biscuits bundle forms on this template._**_"_

This error indicates that a second Biscuits Bundle Builder app block has been included in the current product template.

![](https://staticfiles.gleap.io/helpcenter/65b350631ff56ccfb3879048/20260331005941_7255.png)

**Solution:**  
To resolve this issue remove one of the Biscuits Bundle Builder app blocks from the product template.

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