Key Takeaways

• Provided advanced Shopify development support to resolve critical bugs affecting site functionality and user experience.

• Diagnosed and fixed complex issues within the cart system, product selection, and category filtering.

• Delivered custom Liquid and JavaScript solutions to stabilise and optimise store performance.

• Improved overall user journey, ensuring smoother navigation and more reliable purchasing behaviour.

The Challenge

Redemption Roasters were experiencing a series of technical issues within their Shopify store that were directly impacting user experience and potentially affecting conversions.

Key areas of the site were not functioning as expected. The cart system had inconsistencies, product selection behaviours were unreliable, and category page filtering tools were not performing correctly.

These weren’t surface-level issues. They were rooted in deeper theme logic and required a strong understanding of Shopify’s Liquid framework alongside front-end scripting to properly diagnose and resolve.

The challenge was clear:

• Identify and fix multiple interconnected bugs within a live Shopify environment.

• Ensure all fixes were robust, scalable, and didn’t introduce further issues elsewhere in the store.

• Restore a smooth, intuitive shopping experience for users across key touchpoints.

Our Approach

Deep-Dive Debugging & Issue Isolation

The first step was to fully understand the root causes behind the bugs. Rather than applying quick fixes, we conducted a thorough audit of the theme’s logic and behaviour.

This included:

• Reviewing Liquid templates powering cart and product interactions

• Analysing JavaScript handling dynamic updates and user actions

• Testing user flows across different scenarios and devices

By isolating each issue properly, we ensured that solutions addressed the cause — not just the symptoms.

Shopify Liquid Development

A significant portion of the work required refining and restructuring Liquid code within the theme.

This involved:

• Fixing inconsistencies in how product data was rendered and passed through templates

• Correcting logic errors affecting cart updates and item handling

• Ensuring compatibility across different product types and variants

The goal was to create stable, predictable behaviour across all key ecommerce interactions.

Custom JavaScript Solutions

Alongside Liquid fixes, custom JavaScript was implemented to improve interactivity and resolve front-end issues.

This included:

• Repairing broken cart update behaviours

• Enhancing product selection functionality

• Fixing and stabilising filtering tools on category pages

All scripts were written with performance and maintainability in mind, ensuring they integrated cleanly with the existing theme.

User Experience Optimisation

Beyond just fixing bugs, the work focused on improving the overall user journey.

This meant:

• Ensuring filters responded accurately and quickly

• Making product selection intuitive and error-free

• Delivering a seamless, frustration-free cart experience

Every improvement contributed to a smoother path from browsing to purchase.

Results

Resolved critical bugs affecting cart functionality, product selection, and category filtering.

Delivered a more stable and reliable Shopify store experience across key user journeys.

Improved usability and reduced friction within the purchasing process.

Provided a solid technical foundation to support ongoing growth and future enhancements.