Custom Picqer integration development
Appfront develops custom Picqer integrations that seamlessly connect your warehouse processes with webshops, carriers and accounting packages. Using the official REST API, we build integrations that import orders automatically, synchronise stock levels in real time and generate shipping labels in one click, handling anything from 20 to 5,000+ orders a day.
What is a Picqer integration?
Picqer is the Dutch warehouse management system (WMS) designed specifically for e-commerce. The platform manages the entire warehouse process, from order intake and pick lists to dispatch and returns handling. With support for barcode scanning, location management and multi-channel sales, Picqer sits at the heart of the fulfilment process for webshops handling tens to thousands of orders a day.
A Picqer integration automatically connects that warehouse system with your webshop, carriers and accounting. As soon as a customer places an order, it appears in Picqer. After picking and packing, the shipping label is generated and the track and trace information is sent back to the webshop. Meanwhile, the integration keeps stock levels across all connected sales channels up to date in real time.
Appfront builds these integrations to measure via the official Picqer REST API. We tailor the integration architecture to your specific fulfilment process, so the integration not only works technically but also fits how your warehouse team actually operates.
Bidirectional stock sync
Stock levels flow in real time from Picqer to all your sales channels. When a pick, return or goods receipt is booked, the webshop and marketplaces are updated within seconds, so overselling becomes a thing of the past.
Order-to-ship automation
From webshop order to shipping label in one automated flow. Orders are imported automatically, pick lists are generated and shipping labels are created with the right carrier — without any manual intervention.
Via the official REST API
Implementation in line with the Picqer API specifications, using JSON payloads, webhooks for event-driven synchronisation and structured error handling. Stable, maintainable and future-proof.
Our development process for Picqer integrations
We work to a proven methodology suited to the pace of e-commerce fulfilment. From the initial analysis of your order flow to a stable production integration, every step is aimed at an integration your warehouse team can rely on straight away.
We map out your order flow, sales channels, carriers and warehouse layout. Which data needs to flow in both directions, and which business rules come into play?
We design the integration architecture: webhook versus polling strategy, error handling, retry logic and the data models that connect the systems.
Implementation with automated tests, logging and monitoring. You will see working builds along the way and can validate with test orders before we go live.
A controlled go-live with parallel verification of orders and stock. Afterwards, ongoing management, monitoring and further development as your volumes grow.
What a Picqer integration delivers in practice
Every integration is tailored to your specific fulfilment process. Below are the features we most often build for organisations that want to connect Picqer with their webshop, carriers and accounting.
Order import
Orders from Shopify, WooCommerce, Magento, Lightspeed or bol.com are created in Picqer automatically, including customer details, order lines and shipping preferences. No manual re-keying, no delays.
Pick list optimisation
The integration groups orders into efficient pick lists based on warehouse location, priority and shipping deadline. Your warehouse staff take the shortest route and process more orders per hour.
Stock synchronisation
With every pick, return or purchase booking, stock levels are passed on to all sales channels via webhooks. Multi-location stock is tracked per warehouse, so your webshop always shows true availability.
Shipping label integration
Automatic label generation with PostNL, DHL, DPD, UPS and other carriers. Track & trace codes are written back to the webshop immediately and sent to the customer by email. Carrier selection can be based on weight, destination or customer preference.
Returns management
Return requests are registered automatically in Picqer from the webshop or customer service desk. On receipt at the warehouse, stock is updated and the refund or exchange is initiated — fully automated.
Reporting & dashboards
Warehouse data from Picqer is combined with sales data in custom dashboards. Picking speed, order lead time, return rates and stock movement — visible in Power BI, Looker Studio or your own reporting environment.
Typical use cases in practice
Depending on your type of organisation and order volumes, a Picqer integration can look very different. We regularly see a number of recurring patterns, and for each of them we have developed a proven integration model.
E-commerce retailers
Webshops processing dozens to thousands of orders a day cannot run on manual warehouse processes. We connect your Shopify, WooCommerce or Magento store to Picqer so that orders arrive automatically, pick lists are generated and shipping labels are ready in one click. Stock levels are updated in real time across all channels. See also our e-commerce development.
Fulfilment companies
Fulfilment partners that handle warehousing for several clients need a different order flow and carrier selection for each one. A custom integration configures Picqer per client, with separate stock locations, label profiles and reports, so you can scale without adding manual work.
Wholesale with webshop
Wholesalers that run both B2B and a B2C webshop often struggle with separate stock administrations. A Picqer integration keeps stock for both channels in one system. Bulk orders and single-item orders are processed with the same efficiency, including different packing and shipping rules per channel.
Multi-channel sellers
Organisations selling through their own webshop, bol.com, Amazon and physical stores need one central point for stock management. Picqer acts as that hub, and the integration ensures every sale, whatever the channel, is processed straight away in the warehouse and stock is updated across all other channels. See also our API integration services.
Technology we use
We build Picqer integrations using modern, well-maintained technologies. We tailor the exact stack to your situation and the systems that need to be connected, so that your team or a future supplier can manage and further develop the integration.
For webshops that want to see orders from their systems in the Trengo inbox, there is our page on a Trengo integration.
If you use Brincr for order and stock management alongside your own portal or warehouse, there is our page on a Brincr integration.
Why choose Appfront for your Picqer integration?
Appfront has extensive experience building WMS and e-commerce integrations for Dutch businesses. We always start with a thorough analysis of your order flow and warehouse processes. An integration must not only work technically, but also fit the way your team operates day to day.
For every integration, we write clear documentation so that your own team can understand and manage the integration. No black box, but transparent code and clear agreements on monitoring, alerting and maintenance.
You work with a dedicated point of contact who understands both the technical and the logistical side. This keeps communication short and speeds up decisions when choices need to be made during the build about order flow, carrier selection or stock logic.
Also see our broader services around API integrations, middleware, custom software and e-commerce development.
- Specialists in WMS and e-commerce integrations
- Experience with the Picqer REST API and webhooks
- Integrations with all common webshop platforms and carriers
- Structured error handling and retry mechanisms
- Comprehensive logging and monitoring from day one
- Clear documentation your team can read and manage
- A fixed point of contact, no account managers passed around
- Ongoing maintenance and proactive further development
Security and privacy in Picqer integrations
Warehouse data includes customer addresses, order details and shipping information that fall under the GDPR. Appfront treats this data as a starting point for every integration: we do not store unnecessary personal data in the integration layer, we encrypt sensitive information both in transit and at rest, and we document the data flows so your record of processing activities stays up to date.
Authentication with the Picqer API runs via API keys with restricted permissions. We agree in advance which data really needs to be exchanged, and we limit the scope of the integration to the minimum needed for a working fulfilment process.
More about our approach: information security policy and vulnerability disclosure policy.
- GDPR-compliant data processing and data minimisation
- Encryption in transit (TLS 1.2+) and at rest
- API keys with restricted permissions per integration
- Audit logs with traceable data flows
- Automatic retries and dead-letter queues
- Monitoring and alerting for anomalies
- Secrets management in line with best practice
- Documentation for your record of processing activities
Frequently asked questions about Picqer integrations
Answers to the questions we get asked most often about custom WMS integrations with Picqer.
A Picqer integration is a technical link that allows Picqer, the Dutch WMS for e-commerce, to exchange data with other systems. Through the official REST API, the integration automatically synchronises orders, stock levels, shipments and returns between your webshop, carriers and accounting software. Manually retyping orders or stock corrections becomes a thing of the past.
Picqer can be integrated with virtually any system that offers an API. The most common integrations are with webshops (Shopify, WooCommerce, Magento, Lightspeed), carriers (PostNL, DHL, DPD, UPS), accounting packages (Exact, Snelstart, Xero) and marketplaces (bol.com, Amazon). Integrations with ERP systems, custom software and business intelligence tools are also possible.
The lead time depends on the number of systems to be connected and the complexity of your fulfilment process. A one-way integration, for example orders from webshop to Picqer, can be operational within two to three weeks. A full bidirectional integration with multiple carriers, stock synchronisation and returns handling usually takes four to eight weeks. After an intake, we provide a concrete schedule.
The investment depends on the number of systems to be connected, the complexity of the data flows (one-way or bidirectional), the desired synchronisation frequency and the amount of business logic in the integration. Think of rules for backorders, multi-location stock or carrier selection. We always provide a transparent quote following a no-obligation conversation about your situation.
Yes. Picqer supports multiple warehouses and locations within a single account. A custom integration can synchronise stock levels per location with your webshop or ERP system, so your webshop always knows which products are available where. Orders are automatically routed to the right warehouse based on availability, distance or priority.
Picqer offers webhooks that send a notification to the connected system with every stock movement. We configure these webhooks so your webshop displays up-to-date stock levels within seconds of a pick, return or purchase booking. For systems without webhook support, we build a polling mechanism that queries the Picqer API at short intervals.
Yes. All communication with the Picqer API runs over HTTPS with TLS encryption. Authentication is handled through API keys with restricted permissions. We do not store unnecessary personal data in the integration layer, and we document the data flows so your record of processing activities remains complete. The integration complies with the GDPR and with common security best practices.
Yes. We regularly take over existing integrations, even those built by another party. We start with a code and architecture review, document the integration and draw up an improvement plan. Common improvements include better error handling, faster synchronisation, support for new carriers, and the addition of monitoring and alerting.
Ready to build your Picqer integration?
Tell us which webshops, carriers and systems you would like to connect to Picqer, and we will help design the architecture and deliver a working WMS integration that suits your fulfilment process. A no-obligation first conversation will give you a clear picture of the possibilities within half an hour.