If your preorder button or checkout flow stops working when a bundle app is enabled, this is typically caused by an app conflict.
Why this happens
PreOrder Now is designed to work reliably on single products.
Some bundle apps - such as Kaching Bundle - modify the product form and checkout behavior in ways that can interfere with how PreOrder Now handles add-to-cart / checkout actions.
Because of this, PreOrder Now may not function correctly when certain third-party bundle apps are active.
Does PreOrder Now work with any bundle solutions?
Some merchants have reported success using Shopify’s native bundle solution:
Shopify Shopify Bundles
However:
Compatibility depends on how the bundle is configured.
Even with Shopify Bundles, functionality is not guaranteed.
Recommended Options
Option 1: Use PreOrder Now on Single Products Only
For best compatibility, use PreOrder Now on standard individual products.
Option 2: Test Shopify Bundles Instead
If you need bundle functionality, you can try Shopify Bundles as an alternative.
Please note: While some merchants have success with this setup, we cannot guarantee compatibility in every configuration.
Need Help Testing Your Setup?
If you’re unsure whether your bundle configuration will work with PreOrder Now, feel free to contact support and share: