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Cornerstone
How we extended Medusa to solve thirteen real e-commerce problems
The client needed capabilities that no standard commerce installation could provide. This is how we used Medusa as an extensible foundation and built the missing business solutions.
Flagship case study
Reliability and integrations
- 01Mollie payment recovery in MedusaOur client needed hosted Mollie payments without leaving paid customers stranded when the browser journey broke. Medusa supplied the payment and order foundations; we built the recovery path between them.Pillar · 7 min
- 02Medusa–Odoo data ownershipThe client needed Medusa and Odoo to cooperate without product content, prices and physical stock overwriting one another. We built directional flows plus the screens needed to see and repair drift.6 min
- 03ERP webhook observability in MedusaThe client needed its team to understand whether an ERP exchange changed the business, did nothing intentionally or failed halfway. Medusa exposed integration points; we built the operating history around them.6 min
- 04Safe CSV imports in MedusaThe client needed teams to move several kinds of catalogue data through spreadsheets without one ambiguous contract damaging the shop. We built separate Medusa import and export flows.6 min
International commerce
- 05Multi-currency pricing in MedusaThe client authored catalogue prices in euros but needed controlled USD and GBP prices that could be refreshed and explained later. We built the missing foreign-exchange workflow on top of Medusa pricing.6 min
- 06Multi-currency promotions in Medusa v2The client needed one campaign to use deliberate minimum-spend rules in every currency and the correct definition of basket value. Standard Medusa behaviour did not cover that exact requirement, so we extended it.5 min
- 07Country, language and markets in MedusaThe client needed language to remain separate from the country controlling prices, shipping and payment. We built that market layer with TanStack Start and Medusa regions.5 min
- 08International SEO for Medusa commerceThe client needed search engines to find the right Medusa market and language pages without indexing previews or contradictory variants. We built SEO into the TanStack Start market model.5 min
Storefront and operations
- 09Local-first wishlists in MedusaThe client wanted visitors to save Medusa products immediately, without turning a small expression of interest into compulsory registration. We built the simplest wishlist that fulfilled that promise honestly.5 min
- 10Variant-aware catalogue filters in MedusaThe client needed catalogue filters whose visible results respected colour, size, price and the card customers would actually click. We built a two-stage filtering and URL model around Medusa’s product search.6 min
- 11Reliable back-in-stock alerts in MedusaThe client wanted an unavailable product page to capture genuine purchase intent and bring customers back for the right variant. We built the subscription lifecycle Medusa inventory alone does not provide.5 min
- 12Email previews in Medusa AdminThe client’s team could not reasonably create refunds, invitations, waitlists and stock events in every language just to review their emails. We turned the project’s template catalogue into a Medusa Admin review surface.5 min
- 13Employee discount programmes in Medusa v2The client needed a purchasing benefit tied to an employee, an annual allowance and auditable order usage. Medusa promotions were a useful pricing foundation, but a coupon could not represent the programme.5 min
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