Mastering Shopify Subcollections: Your Guide to Dynamic Product Grids

Hey there, fellow store owners! Ever found yourself scratching your head trying to organize your products into neat subcategories on Shopify? You're definitely not alone. It's one of those common challenges that comes up time and again in the Shopify community. Recently, our friend swarique sparked a great discussion about this very thing, asking how to create subcollection pages within main collections and display relevant products without a huge headache. The thread was packed with some really insightful solutions, and I wanted to break them down for you.

The Core Challenge: Shopify's Collection Structure

Swarique's dilemma is classic: they wanted a "Women Jewellery" collection to show subcollections like "Necklace" and "Bracelets." Then, clicking on "Necklace" should just show necklaces, not the entire subcollection menu again. The challenge escalated when they realized that changing the subcollections displayed on "Party Glamour" was also affecting "Everyday Elegance" because both were using the same custom template. "Do I need a separate template for every category?" they wondered, and honestly, that's a fair question when things get complex!

Shopify, by default, treats all collections equally. There isn't a built-in "subcollection" feature that automatically nests collections visually on your storefront without some custom work. This is why when you apply the same custom template to multiple collections, any settings you change on one will affect all others using that same template. It's like having one blueprint for all your houses – if you paint one wall red, all houses get that red wall!

Here's a look at swarique's mega menu setup, illustrating the desired hierarchy:

And here's the confusing outcome swarique was facing – the "Party Glamour" page showing the same collections as "Everyday Elegance":

The good news? The community came up with some clever workarounds, mainly revolving around dynamic sources and smart template management.

Solution 1: Harnessing Metafields for Dynamic Subcollections

Tim_1 offered a fantastic, more advanced solution using Shopify's metafields. This is often the most flexible way to handle dynamic content without creating a gazillion templates.

Step-by-Step with Metafields:

1. Create a Collection Metafield: Go to your Shopify admin, navigate to Settings > Custom data > Collections. Click "Add definition."
   • Give it a clear name (e.g., "Subcollections to display").
   • Set the Type to "List of collections." This is crucial because you want to link multiple sub-collections.
   • Make sure it's accessible to your storefront.

   This is what the metafield definition looks like:

   
2. Populate the Metafield for Parent Collections: Go to each "parent" collection (e.g., "Everyday Elegance") in your Shopify admin. Scroll down to the Metafields section, find your newly created "Subcollections to display" metafield, and add the relevant sub-collections (e.g., "Daily wear Necklace", "Party Glamour") to it.
3. Display with a Dynamic Section: In your theme editor (Online Store > Themes > Customize), navigate to your collection page template.
   • Add a "Collection list" section (or a similar section that can display multiple collections).
   • In the section settings, look for the option to connect to a dynamic source. This is where you'll link it to your "Subcollections to display" metafield.

   Here's an example of connecting a section to a dynamic source:

   

Troubleshooting Metafield Display (Swarique's Experience & Tim's Follow-up):

Swarique initially struggled with this, noting that the metafield wasn't "popping up" during linking:

Tim_1 clarified that the editor only lists metafields compatible with the current setting. It's possible the section you're trying to use doesn't expect a list of collections as input, or your theme might not be fully compatible with this dynamic approach. He suggested trying themes like Savor/Horizon, which are known to work well with this method. If it's still not showing up, you might need a custom section or to explore AI assistance for theme code modifications.

Here's Tim's screenshot showing the editor's expectation for a single collection input, not a list, which might explain the issue:

Handling Empty Metafields (Tim's Pro Tip):

If a collection doesn't have sub-collections assigned to its metafield, the section might display empty placeholders. To prevent this, Tim shared a clever Liquid snippet:

1. Add a "Custom Liquid" section just above your "Collection list" section in the theme editor.
2. Paste the following code, adjusting custom.sub_collecitions to match your metafield's namespace and key:

{% # my metafield is set up with this namesapace and key -- amend for yours %}
{% if collection.metafields.custom.sub_collecitions 
   and collection.metafields.custom.sub_collecitions.value.size > 0 
%} 
  
{% else %}

{% endif %}

This code checks if the metafield exists and has values. If not, it adds CSS to hide the very next section, keeping your layout clean.

Solution 2: Smart Template Assignment & Navigation Menus

Emilyjhonsan98 brought up a crucial point that directly addresses swarique's immediate problem: template assignment.

1. Correct Template Assignment is Key:

This is often the root cause of "same menu everywhere" issues. If your "Necklace" collection is still showing sub-lists, it's likely using the same custom template as your parent "Women Jewellery" page.

Here's how to fix it:

1. Go to Products > Collections in your Shopify admin.
2. Click on a sub-collection (like "Necklace").
3. On the right-hand sidebar, under "Theme template," ensure it's set to Default Collection.
4. Only your main "parent" collection (e.g., "Women Jewellery" or "Everyday Elegance") should use your custom sub-list template.

This simple step ensures that when a customer clicks on "Necklace," they see the default collection layout (which typically displays products) instead of another sub-list of categories.

2. The "Pro Way" with Navigation Menus:

Emily also suggested a robust way to manage sub-collections for display: using Shopify's built-in Navigation menus.

1. Create a Menu: Go to Online Store > Navigation. Create a new menu that mirrors your desired sub-collection structure. For example, a menu named "Everyday Elegance Subcategories" could contain links to "Daily wear Necklace", "Party Glamour", etc.
2. Integrate with Liquid: In your custom collection template for "Everyday Elegance," you'd use Liquid code to dynamically pull and display the links from that specific menu. This makes your category structure super easy to manage from the Navigation section, without touching code or metafields for every change.

Bonus Tip: Related Products Made Easy

Swarique also asked about showing related/recommended products. Good news here: you don't need custom templates for this!

In your theme editor (Online Store > Themes > Customize), simply add the "Related Products" or "Product Recommendations" section to your Default Product and Default Collection templates. Shopify's built-in logic is pretty smart and will automatically suggest relevant items based on product tags, types, and customer behavior.

Wrapping It Up

As Maximus3 pointed out, creating custom templates for collection lists is a common approach until Shopify introduces a truly native sub-collection feature. And yes, some stores even use regular pages to act as landing spots for nested categories, which gives you even more design flexibility.

The key takeaway from this discussion is that while Shopify doesn't have a one-click "subcollection" button, you have powerful tools at your disposal. Whether you go with the dynamic power of metafields and custom sections, or the structured simplicity of correct template assignment and navigation menus, you can absolutely achieve a clean, hierarchical product display. Don't be afraid to experiment with these methods to find what works best for your store and your customers!