The checkout is only one step
Purchases must connect with access, fulfilment, billing or customer systems.
Commerce that serves customers.And supports your team.
A purchase sets other work in motion: payment, fulfilment, customer records or access to a course. SDEV builds commerce and branded resale platforms that connect the customer experience with those responsibilities.
- Drupal Commerce
- Branded resale
- Payments & logistics
Where we can help
Make buying straightforward.Keep the operation together.
Different businesses need different transaction flows. Resale adds sellers, moderation and payouts; online learning connects purchases with course access. We design and build around those requirements.
Your model has more roles
Sellers, buyers, moderators and operational teams need different journeys and permissions.
Resale needs to feel like your brand
Listings, trust, logistics and customer loyalty need a coherent branded experience.
What SDEV builds
From storefrontto day-to-day operation.
Storefront design & Drupal Commerce
We design the buying experience and build its commerce functionality, using headless delivery where it fits. Product information, pricing and checkout work as part of the same journey.
Seller journeys & moderation
We build resale journeys from seller onboarding and listing submission to editorial review. Operational tools help the team manage what reaches the storefront.
Payments, payouts & fulfilment
We integrate payment and logistics services with order workflows, including seller payouts for resale. The implementation follows how the business handles each transaction.
Course access, billing & CRM
Purchases can connect with learner access and business systems. At 123Sonography, multi-currency course commerce works alongside Chargebee billing and Zoho CRM.
How the parts work together
Your brand.Our resale engine.
Resale Preloved is SDEV’s white-label resale platform, built with Drupal Commerce and Next.js. It brings listings, moderation, purchasing, payouts and logistics into one product. Marimekko has used its own brand implementation since December 2024.
View Resale Preloved case studyA resale experience under your brand
Adapt the storefront and seller journey to the brand’s identity and operating model.
Tools for the operation behind it
Connect moderation, orders, payments and logistics so teams can manage the resale journey.
A product developed beyond launch
SDEV owns and continues developing Resale Preloved around the needs of a live commerce platform.
See it in practice
Different transactions.Working commerce platforms.
Resale Preloved
Resale
Resale
Preloved
SDEV’s own resale product, live with Marimekko since December 2024. Seller listings, moderation, Stripe payments and Posti logistics support the buying and selling journey.
View case study
123Sonography
Website
Website
& Learning Platform
Since 2017, SDEV has developed 123Sonography’s learning and commerce platform, including multi-currency course purchasing and connections with billing and CRM.
View case study
How we work
A clear starting point.Support beyond delivery.
Map the buying and selling journey
Review customers, roles, transactions and existing systems. Agree the scope, data migration and required integrations.
Build and test the operation
Develop the storefront, commerce rules and operational tools. Test how the parts work together from purchase to fulfilment or access.
Keep the platform working
Support the live platform with hosting, maintenance and continuing development as the business changes.
Common questions
The detailsthat matter.
Commerce and resale
Does SDEV build more than resale platforms?
Yes. Our work includes course purchasing and learner access at 123Sonography, alongside branded resale through Resale Preloved. We build around the transaction and the business behind it.
Who owns Resale Preloved?
SDEV created and owns Resale Preloved. Marimekko uses a brand implementation of that product.
Can a brand use its own identity and logistics?
Yes. Resale Preloved is adapted to the brand’s identity and operating model. We review existing systems and providers to define the integrations needed.
Delivery and development
Can SDEV migrate an existing commerce platform?
Yes. For Marimekko, SDEV migrated contacts and listings from the previous platform. The scope of another migration depends on its data and the records that need to carry over.
Which payment and logistics providers are supported?
The live Marimekko implementation uses Stripe for payments and Posti for logistics. We assess other providers against the required transaction and fulfilment flows.
What is planned for AI in Resale Preloved?
Further AI-supported capabilities are planned, including possible shopping and seller assistance. The live product described in the case study is the commerce foundation; those future capabilities are not presented as released.
What happens after checkout?
Tell us what you sell, who uses the platform and which steps your team needs to manage.
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