Custom Shopify Product Builder for a European Fashion Brand

Client Overview

Labo Mono is a premium indie outdoor accessories brand based in the UK and France, operating in the European fashion and lifestyle ecommerce space. The brand sells customized sling bags through a Shopify store, letting buyers personalize their products according to their taste. The core focus of the brand relies on design, customer experience, and smooth workflows while preparing for global expansion.

TL;DR

Labo Mono is a sleek European accessories brand that was struggling with sluggish third-party tools for product customization, where rigid rules and slow loads were causing trouble. Discover how we flipped the script with a custom Shopify app that resulted in better accuracy.

Challenges

Before partnering with us, the client was using a third-party tool to customize their product builder. The client was struggling with lots of things, such as slow loading, inefficiency in inventory tracking, rigid customization logic while customizing the product, limited control on backend, and the warehouse team was facing issues in identifying exact products for fulfillment.

The main objective included;

Take complete control over customization logic.
Improved visibility of SKU and inventory.
Eliminate dependency on third-party tools.
Deliver a seamless user experience.

Solution

As a Shopify expert agency, we developed a personalized system to customize products with a step-by-step approach. The system is perfectly aligned with user demands while providing complete control on the backend. To overcome these hurdles;

Shopify remains the core of our technology toolset and works as a commerce engine, to build a custom Shopify app. The app handles product logic, bundling, and personalization. We composed custom elements like bags, ropes, fabrics, straps, and carabiners into bundles and linked them to proper SKUs.

Next, we prepared a step-by-step customization journey for the admin to determine customization questions based on fabric type, strap, and further accessories.

React handles the frontend side, powering a Single Page App (SPA) for rapid interactions. This way users can make selections in real-time with 2D previews via transparent PNG and WebP assets. These assets cut down the load time and provides instant visual feedback to customers.

Node.js is used for backend operations that handle server-side logic, validation rules, and API communication. We hooked it all to MySQL for strong storage of configs, preferences, and rules while ensuring no lag during sessions.

Amazon Web Service was used to host and deploy the entire system while working on secure storage and stable development setups to support future growth. Now the setup manages all the entities with complete control, real-time visibility, and all without depending on third-party tools.

Technologies and Tools

Platform

Shopify (Custom App, Bundles, Metafields)

Programming Languages

React, Node.js

Database

MySQL

Cloud & Hosting

AWS (EC2, storage, deployment)

Image Optimization

Transparent PNG and WebP assets

Build System

Webpack (Optimized code bundling)

Results

SKU-level visibility marked 100% for warehouses and operations teams.
Order accuracy improved by 85% with faster execution.
Dependency on third-party custom app was eliminated.
Live pricing updates while customizing.
Recurring SaaS charges removed for long-term savings.

Words of Appreciation

"We were paying for a third-party app that did not quite fit how our products are configured, and the gap showed up as picking errors in the warehouse. Having the builder made properly for our catalogue meant our operations team could finally see what had actually been ordered at SKU level, and customers see accurate pricing while they configure rather than at checkout."

Founder

Future Scalability

We have designed the system in a way that supports scaling beyond just feature expansion. The system supports adding new product categories, a secondary customization layer, API-derived back-in-stock notification, advanced pricing and logic rules, and multi-market currency management. The flexible design of the platform enables teams to introduce new products while making small adjustments. This approach ensures the brand can adapt to new growth over time without any hurdles.