Three years of QA for a personalization engine that plugs into every storefront

Websitedesignnbuy.com ↗

Client

DesignO

Industry

eCommerce SaaS · Web-to-print & personalization

Engagement

Ongoing · 3+ years

QA team

2 full-stack QA engineers

Platforms

Websites · Admin Platform · SaaS Platform · eCommerce Platform · CMS · API · Database

About the project

DesignO is DesignNBuy’s API-driven, plug-and-play web-to-print and product personalization software. Businesses add it to the online store they already run, and their customers design products in the browser — business cards, packaging, labels, apparel, signage and merchandise — with a drag-and-drop editor, AI image and text generation, templates and realistic 2D and 3D previews.

Behind the editor sit Configure, Price & Quote rules that calculate prices from options, materials and quantities, an admin platform for templates, assets and products, and production workflows that turn every order into a print-ready file. All of it has to work inside Shopify, WooCommerce, Magento and other storefronts, each with its own themes, checkout and update cycle.

QAonTOP has provided two full-stack QA engineers for more than three years, testing the editor, storefront integrations, admin and CMS, and automating regression with AI-assisted tools.

What made this hard

A personalization tool is only as good as the file that reaches the printer. DesignO had to look right in the browser, price correctly in the cart and produce exactly what the customer designed — on every storefront it plugs into.

1. CHALLENGE 01

   One product, many storefronts

   The same editor runs inside Shopify, WooCommerce and Magento stores with different themes, plugins and platform updates. A change that works on one can break another.

2. CHALLENGE 02

   What you see must be what prints

   Fonts, bleed, safe zones, image resolution and colour have to carry from the on-screen preview into the production-ready file without drift.

3. CHALLENGE 03

   Pricing with endless combinations

   Sizes, materials, finishes, quantities and tiered discounts combine into thousands of price paths, and every one must match between quote, cart and order.

4. CHALLENGE 04

   AI inside the editor

   AI-generated images and text need to be relevant, brand-safe and correctly placed on the product — without slowing the editor down.

How QAonTOP tested DesignO

1. 01

   Map every storefront and product type

   Built a coverage matrix of eCommerce platforms, product types and editor features, tracked in Zoho, and ranked each combination by order volume and risk so testing effort follows real customer use.

   Tools  Zoho · Microsoft

2. 02

   Test the design-to-print chain

   For each product type, compared the on-screen design with the generated production file — dimensions, bleed, fonts, image resolution, layers and colour — with order and file records checked in SQL.

   Tools  SQL

3. 03

   Integration testing per platform

   Plugin and API integration tests for Shopify, WooCommerce and Magento: product sync, add-to-cart with design data, checkout, order push and re-order. Postman covers the DesignO APIs and webhooks.

   Tools  Shopify · WooCommerce · Magento · Postman

4. 04

   AI-assisted regression

   AI-driven automation generates and maintains regression flows for the editor, templates and CPQ, with pricing results cross-checked against the rules data in SQL.

   Tools  SQL · Postman

5. 05

   Devices, usability and load

   BrowserStack runs across browsers, tablets and phones for the editor and 3D previews, usability walkthroughs with first-time designers, and JMeter load tests on editor APIs and file generation.

   Tools  BrowserStack · JMeter

The engagement in numbers

Before and after the engagement

What we covered