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How We Transformed a Shopify Store Into a Custom Registration System

By Brendan Quigley – Developer at Three Acres When you think of Shopify, you probably think online store. Products, variants, checkout — the usual. But what if you could go beyond that? Recently, we helped Leahy Music Camp reimagine their Shopify site to do something a little dif

How We Transformed a Shopify Store Into a Custom Registration System

By Brendan Quigley – Developer at Three Acres

When you think of Shopify, you probably think online store. Products, variants, checkout — the usual. But what if you could go beyond that?

Recently, we helped Leahy Music Camp reimagine their Shopify site to do something a little different: act as a complete registration system for their programs. No third-party apps. No bloated plugins. Just smart use of Shopify’s native features, a little API work, and a simple Google Sheet integration.

Here’s what we did:

The Challenge

Leahy Music Camp needed a way to collect detailed participant information — like name, age group, musical program, and whether they had a chaperone — all during the purchase process. At the same time, they wanted:

  • Pricing to be controlled by product variants (i.e. age group)

  • All additional info collected at the product level

  • Seamless data export to Google Sheets for admin use

The Solution: Smart Customization on Shopify

We used three core features to make this happen:

1. Line Item Properties for Registration Info

Shopify allows for custom fields on product pages through something called line item properties. We used these to collect fields like:

  • Participant Name

  • Program Selection

  • Chaperone status

This info travels with the product to the cart and is tied to the order.

2. Variants for Price Control

Certain selections — like age groups — impacted the cost. We kept these as true product variants so that Shopify’s pricing and inventory logic could still apply.

3. Google Sheets + Shopify API Integration

One challenge was that line item properties don’t export with orders by default. So we wrote a Google Apps Script that pulls order data (including custom fields) into a Google Sheet using Shopify’s Admin API.

Why This Matters

This approach creates a powerful, flexible system that:

  • Keeps the checkout experience native and fast

  • Works with Shopify’s core product + inventory logic

  • Avoids building from scratch

  • Can be adapted for events, classes, workshops, and more

Want to Build Something Similar?

This kind of solution works for more than just camps. Whether you’re offering:

  • Workshops

  • Courses

  • Events

  • Group bookings

  • Custom product bundles with form logic

You can build it within Shopify — and we can help.

If this sparked any ideas for your own business, let’s talk.
📬 Get in touch with us