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Replatforming looks good on you: Bestseller’s transition to Shopify Plus.


  • E-commerce platform migration
  • Custom theme development
  • Custom app development
  • System integrations
  • Maintenance and evolution
Work Bestseller Next

Client at a glance

Now that’s a portfolio.

Bestseller is an international, family-owned company that provides fashion clothing and accessories for women, men, teenagers and children. Bestseller’s portfolio boasts more than 20 individual fashion brands such as JACK & JONES, VERO MODA and ONLY & SONS with tremendous global reach, including 50+ branded chain stores in Canada alone. Visit Bestseller Store


Box Icon Diff Agency

Migrate Bestseller from Magento to Shopify Plus to reduce hosting costs, enable real-time inventory updates and rectify oversell issues.

Box Icon Diff Agency

Create a custom theme for the house of brands.

Box Icon Diff Agency

Develop a responsive design to boost mobile sales.

Mandate in a nutshell

Replatforming: No stress. Full-on growth.

Bestseller asked Diff to help turn the proverbial ship by migrating their North American site from Magento to Shopify Plus. The team oversaw the ERP integration with Momentis and developed a custom theme for the brand--all within four months and without losing a single sale in the migration process. The result: inventory management issues are now a thing of the past.

Project Highlights

Four months. Double the mobile traffic.

As part of the migration project, Diff developed a responsive, mobile-friendly design. It’s no surprise that mobile now accounts for 60% of Bestseller’s traffic and mobile conversion has doubled. Diff also built a promo engine that gives Bestseller’s marketing team the flexibility to quickly respond to their market with features such as brand-driven discounts.


  • System integration audit
  • Momentis ERP integration
  • Custom promo engine



Mobile traffic doubled.

Maintenance cost reduction.

Weekly shipping capacity more than doubles.

"Working with Diff to set up our website and get it going was a great experience. Their proactivity really helped us meet our timelines, which were very strict. They were always reaching out to other vendors and solving problems. We almost felt like sometimes they were reading our minds and giving us what we didn’t even know we needed. We could never have launched in four months like we did without them."

- Philippe Gaboury,

Ecom Operations Team Lead at Bestseller

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