Step 1: Create a Bundle Template
We recommend creating a dedicated product template for your collection bundles rather than adding the app block to your default template.
Go to Online Store → Themes → Edit theme
In the template picker at the top, open your default Product template
Click Create template (or Duplicate template, depending on your theme)
Name it something like
mod-collection-bundleFind the Product information section (sometimes called Product details — the name varies by theme)
Click Add block → Apps → Collection Bundle
Position the block below the title/price and above the Add to Cart button
Click Save
Adding to a Page or Collection Template
If you want to display a collection bundle on a page or collection (instead of its own product page), the block can't auto-detect which bundle to show. You need to manually connect it.
Go to Online Store → Themes → Edit theme
In the template picker at the top, select the Page or Collection template you want to add the bundle to
Find an appropriate section and click Add block
Select Apps → Collection Bundle
Click the Collection Bundle block you just added to open its settings
Find the Bundle Product setting in the right-hand sidebar
Click the product selector and search for your bundle product — this is the parent product that MOD Bundles created, not the individual products inside the bundle
Select the correct bundle product
Position the block where you want it to appear on the page
Click Save
Tip: The bundle product has the same title you gave it when creating the bundle in MOD Bundles. If you're unsure which product it is, check MOD Bundles first — the bundle's product title is shown on the edit screen.
Step 2: Assign the Template
Assign your new template to your bundle product:
Go to Products in Shopify admin
Find your bundle product
In Theme template, select
mod-collection-bundle(or whatever you named it)Save
Step 3: Test
Visit the bundle page on your storefront
Navigate through each step
Make selections and add to cart
Verify contents and pricing
Troubleshooting
Bundle not showing — Is the block added? Is the product published? Is the correct template assigned?
Steps not displaying — Check all steps have collections with published products
Selections not working — Check for JavaScript errors (F12 → Console); test in incognito mode


