One idea changes the market. One plugin brings it into every checkout.

topi is revolutionizing B2B rental: instead of buying hardware at a high cost, companies rent it flexibly — a model that frees up liquidity, especially for small and medium-sized businesses. For this offer to work, it has to reach the point where the purchase happens: the retailer's checkout. Exactly that bridge was missing — a Shopware integration that brings topi's rental payment seamlessly into existing shops. Built by a Shopware agency that treats plugins as products.

• The best buying experience for end customers — the rental option fits seamlessly into the purchase flow instead of interrupting it.
• A product, not a one-off: a distributable plugin that works the same across many retailers — not a custom solution per shop.
• Make the rental logic visible: price widgets, instalments, and a rental summary across the entire customer journey — from product listing to cart.
• Self-service rollout: an onboarding guide and clean documentation so retailers can activate the integration on their own.

• Many shops, one plugin: the integration has to run reliably across the most varied retailer setups — not just in a controlled environment.
• Coexistence of payment methods: topi sits alongside established methods like PayPal and Klarna — without conflicts in the checkout.
• Rental-specific data: serial numbers and rental terms must be passed correctly from the order to topi.
• Shopware 6 standards: update capability & 6.5 compatibility as a requirement.

Decision formula per work item: impact on the buying experience · commitment to the launch · ownership of a product that scales.

42 work items across six work packages (AP-00 to AP-05) — Shopware plugin development from the base plugin through the API to product listing, detail page, and checkout. In close coordination with the topi development team, iteratively.

• Base plugin & API: catalog and shipping sync, order attributes, and a custom CustomPayment handler as the foundation.
• Frontend across the whole journey: price widget & rental label on the product page, off-canvas cart with a rental summary, experience-world integration.
• Pass rental data correctly: serial numbers read from the order line items and transmitted to topi.
• Quality assured: Klarna/PayPal sandbox and cleanup of installation errors through to store readiness.

The difference: this wasn't a shop being built, but a product — one that multiplies.

• Live with many well-known ITC retailers — one integration, many shops, one maintenance track.
• Self-service ready: an onboarding guide and documentation so new retailers can start on their own.
• A scaling lever: built update-capable (SW 6.5) — every new retailer extends topi's reach without a new custom solution.