Give your customers the delivery options they want
Turn your checkout into a real conversion engine
With the arrival of Checkout Extensibility, Shopify Plus merchants can finally tailor the checkout fully to their customers. The Wuunder Checkout (formerly Paazl) extension helps you easily integrate local delivery preferences, clearly communicate delivery times, and create a checkout that converts. Personalise the final step in your checkout and stand out from the competition.
Shopify Plus provides a strong foundation.
Ambitious brands want to use their checkout more strategically.
Wuunder gives you the freedom to design delivery flows that truly match your brand, markets, and operational strategy.
Configure shipping logic per country.
Control how and when delivery options appear.
Prioritize carriers based on cost, performance or SLA.
Design a checkout experience that feels fully yours.
From carrier selection to visual presentation, you decide what customers see — and why.
This isn’t just about adding more delivery options.
It’s about building a checkout that supports your growth strategy, protects your margins, and scales with you internationally.
Your checkout. Your rules. Fully optimized.
Get started quickly in just a few simple steps
Installeer de extensie
Activeer de gratis Wuunder Checkout-extensie direct vanuit je Shopify Plus admin.
Configureer je delivery matrix
Stel slimme bezorgregels in, op basis van locatie, producttype of orderwaarde, wij begeleiden je stap voor stap.
Koppel je systemen
Integreer naadloos met je WMS, OMS en ERP. Wij ondersteunen waar nodig voor een soepele technische implementatie.
Design een checkout die past bij jouw brand
Pas de look & feel volledig aan zodat de checkout perfect aansluit op jouw merkbeleving.
Test en ga live
Optimaliseer, valideer en lanceer met vertrouwen.
Discover what our Shopify Plus extension can do
We'll happily show you in a demo how Wuunder's Shopify Plus checkout widget can boost your conversion.
General Product
Q: What is the Wuunder Shopify Plus Checkout extension?
A: It’s a delivery option widget built specifically for Shopify Plus merchants using Checkout Extensibility. It lets you show dynamic delivery methods, accurate delivery times, and carrier choices directly in the checkout without any custom code.
Q: How does this extension improve conversions?
A: By showing customers relevant delivery choices and clear delivery times, shoppers feel more confident completing purchases - reducing drop-off at checkout and increasing completed orders.
Q: What delivery options can I show?
A: You can offer home delivery, same-day options (where available), parcel shop/collection points, timeslots, nominated day and more - all dynamically displayed based on the customer’s location or based on cart value.
Shopify Plus & Technical
Q: Do I need a Shopify Plus license to use this?
A: Yes - because this extension leverages Shopify’s Checkout Extensibility framework, which is currently available only on Shopify Plus.
Q: How does this affect my store’s performance?
A: The extension runs via Shopify’s native framework, keeping checkout speed and reliability high. No heavy scripts or slowdowns.
Q: Does it require developer help to install?
A: Basic installation can be done quickly, but we recommend our specialists to tailor delivery logic and UI to your brand and implement best practices
Q: How does a typical implementation and onboarding process look?
A: First, you install the Wuunder extension (freely available in Shopify’s app store) directly from the Shopify Plus admin. From there, we support you with configuring carriers and delivery options. If required, Wuunder can be connected to your WMS, OMS, or ERP systems. Next, the checkout widget is customized to align with your brand and UX requirements. The setup is then tested using real orders and different shipping scenarios. Once everything is validated and approved, you can go live.
Q: How is support handled for Wuunder Checkout?
A: Every merchant is assigned a dedicated account manager as a primary point of contact. For critical incidents, you have access to 24/7 emergency support. For day-to-day support requests, we work with clearly defined SLAs based on the type and urgency of the issue, ensuring predictable response and resolution times.
Integration & Carriers
Q: Which carriers does it support?
A: The extension integrates with 100+ carriers automatically - including major local and international providers - without separate setup.
Q: Can I still use my own carrier contracts?
A: Yes. Your pre-negotiated carrier contracts can be integrated so delivery choices and pricing reflect your contract terms.
Q: How does data sync with my shop backend?
A: The extension integrates with your backend through Wuunder’s platform so delivery selections and carrier data flow seamlessly into your fulfillment and order systems.
Results & Benefits
Q: What sort of results do other brands see?
A: Merchants typically report lower cart abandonment and fewer delivery support calls (WISMO) when offering clear delivery options and times. When implementing nominated day in combination with Greenchoice the University of Groningen validated a 30% checkout conversion uplift.
Q: Will customers see delivery times at checkout?
A: Yes, the extension shows estimated delivery dates or time windows which reduces frustration and increases clarity. This is based on merchant specific business ruling (cut-off times, warehouse locations, and origin / destination countries) Additionally we leverage real time API calls with specific carriers like PostNL, UPS, DHL and DPD.