Custom Monta integration development
Appfront builds custom Monta integrations that fully automate your e-fulfilment, whether from your webshop, ERP, OMS or marketplace. Using the Monta REST API, we push orders to the fulfilment centre, synchronise stock in real time and feed track & trace and returns back to you. This way Monta processes your orders without manual work, and your own environment remains the heart of the operation.
What is a Monta integration?
Monta is a Dutch e-fulfilment and 3PL provider for webshops (formerly Montapacking, rebranded as Monta in 2021). From its fulfilment centres, Monta handles storage, order picking, shipping and returns processing, so you can outsource your logistics and scale without managing a warehouse yourself. Your webshop remains the place where customers order, and Monta ensures those orders physically leave the building.
In practice, a custom integration means: orders received in your webshop are automatically pushed to Monta, available stock is written back to your channels in real time, track & trace and shipping status are fed back to the customer and back office, and returns are handled properly. For brands selling through multiple channels, we bring all order flows, from webshop and marketplaces alike, together into fulfilment.
Appfront builds in line with the official Monta REST API documentation and the OWASP ASVS security standard. We align the order, stock and returns flows with your actual processes, and build custom work where standard plugins fall short, so the integration grows with your range and stays reliable even at peak volumes.
Outsourced fulfilment
Storage, order picking, shipping and returns processing are handled through Monta's fulfilment centres. You manage the process from your own webshop or ERP, while Monta carries out the physical logistics, with no warehouse of your own and no additional staff.
Real-time stock
Stock held in Monta's warehouses is continuously written back to your webshop and marketplaces. No overselling and no manual corrections: what is in the fulfilment centre is what your customer can order online.
Track & trace feedback
As soon as Monta dispatches an order, the shipping status and track & trace information flow back to your webshop and back office. Customers are kept informed automatically, and your support team can see what is happening with every order in a single environment.
Our development process for Monta integrations
We follow a proven methodology that removes uncertainty early and delivers a stable integration. From an initial analysis of your order flows, stock management and channels through to go-live and ongoing management, every step is aimed at an integration your team can understand and trust.
We map out which orders should go to Monta, from which channels (webshop, ERP, marketplaces), how stock and returns should synchronise, and where standard plugins fall short for your situation.
We design the integration architecture, choose the right authentication and draw up an error-handling strategy.
Implementation with automated tests, structured logging and monitoring. You see working builds along the way.
Controlled go-live with data validation and a safety net, followed by ongoing management and further development.
What a Monta integration delivers in practice
Every Monta integration is set up specifically for your order flows, stock management and adjacent systems. Below are the features we most often deliver for webshops and brands that run their e-fulfilment with Monta.
Webshop orders to Monta
Orders placed in your webshop are automatically pushed to Monta for picking and dispatch. Address details, order lines, shipping method and any special instructions travel with each order, so every order enters the fulfilment process without manual handling.
Real-time stock sync
Stock levels in Monta's warehouses are continuously written back to your webshop and channels. Movements from goods receipt, picking and returns are processed immediately, so you avoid overselling and customers always see accurate availability.
Track & trace feedback
As soon as Monta dispatches a shipment, we retrieve the shipping status and track & trace information and write it back to your webshop and back office. Customers automatically receive status updates, and your support team sees the current delivery status in one environment.
Returns handling
Returns arriving at Monta are fed back to your webshop and accounts: which item, what reason and what stock movement. This keeps your stock levels accurate and lets you process refunds or exchanges promptly.
Marketplace and multichannel orders
If you sell through multiple marketplaces and channels, we bring all order flows together towards Monta. Orders from your webshop and marketplaces are sent centrally for fulfilment, with stock kept in sync across all channels.
Custom connector
Where standard plugins fall short, such as with non-standard order logic, bundles, partial shipments or an ERP/OMS without a ready-made connector, we build a custom connector on the Monta REST API. It is tailored precisely to your processes, with monitoring and logging from day one.
Typical use cases in practice
A Monta integration looks very different from one organisation to the next. We see a number of patterns recur often, and for each we have a working setup with attention to order flows, stock sync and returns handling.
Online shops
Webshops on Shopify, WooCommerce, Magento or Lightspeed that want to fully outsource order picking and shipping. Orders flow automatically to Monta, stock levels sync back in real time, and customers receive track & trace. See also our Shopify integration and Lightspeed eCom integration.
D2C brands
Direct-to-consumer brands that want to focus on product and brand and outsource logistics entirely. Orders flow from your ERP or webshop to Monta, while stock, shipping status and returns are synced back to a single source of truth.
Retailers with marketplaces
Retailers who sell through several marketplaces alongside their webshop and want all orders fulfilled centrally. We bring the multichannel order flows together towards Monta and keep stock synchronised across all channels, so overselling is avoided.
Fast-growing e-commerce
Fast-growing webshops that want to professionalise their operations and scale without investing in a warehouse of their own. By connecting Monta robustly to your webshop and ERP, order volumes can grow without manual work or error-prone exports becoming the bottleneck.
Technology we use
We build Monta integrations using the official Monta REST API and webhooks, combined with the backend stack that suits you. The precise choice depends on your webshop platform and adjacent systems, so your own team can manage or further develop the integration.
Why choose Appfront for your Monta integration?
Appfront has extensive experience building API integrations for a wide range of organisations in the Netherlands. We always start with a thorough analysis of existing systems and processes. An integration should not only work technically, but also add practical value to your e-commerce operation.
For every integration, we write clear documentation and make sure your own team, or any future supplier, can understand and manage it. No black box, just 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 functional side. This keeps communication short, prevents misunderstandings and speeds up decisions when choices need to be made during development.
Also explore our broader services around API integrations, middleware, custom software and web app development. For shipping, we also look at integrations with Sendcloud and carriers such as PostNL.
- Experience with the Monta REST API, order, inventory and returns flows
- Specialist in webshop integrations (Shopify, WooCommerce, Magento, Lightspeed)
- Familiar with multichannel orders, marketplaces and ERP/OMS synchronisation
- Secure by default: credentials kept in vaults, webhook validation, scoped permissions
- 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
- A way of working tailored to your existing e-commerce landscape
Security and privacy in Monta integrations
Order data flowing between your webshop and Monta always contains personal data, such as your customers' names, addresses and contact details. Appfront builds to the OWASP ASVS standard. This means, among other things: API credentials stored in secure vaults, validation of incoming webhooks, scoped permissions and regular audits of the order, inventory and returns flows.
We encrypt data in transit and document the data flows between your webshop, Monta and any marketplaces, so your record of processing activities is complete and you can demonstrate compliance with the GDPR. We catch faulty or duplicate orders with validation and idempotency, so a customer is never shipped or invoiced twice.
More on our security approach: information security policy and CVD policy.
- GDPR-compliant data processing and data minimisation
- Encryption in transit (TLS 1.2+) and at rest
- Role-based access and least-privilege principles
- 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 Monta integrations
Answers to the questions we are asked most often about Monta integrations.
A Monta integration is a technical link between Monta and another system — such as your webshop, ERP, OMS or marketplace. Via the Monta REST API, orders are sent programmatically to the fulfilment centre, stock is synchronised in real time and track & trace information comes back into your own environment. An integration can range from simple (passing on orders and writing back stock) to extensive (multichannel orders, return flows, partial shipments and custom logic where standard plugins fall short).
Monta suits webshops and brands that want to outsource their e-fulfilment: storage, order picking, shipping and returns handling from Monta's fulfilment centres. It is a strong fit when you want to scale without managing a warehouse yourself. If you would rather control your own warehouse with a WMS, we will look together at a WMS integration instead of a 3PL integration; for pure shipping labels without fulfilment, a shipping platform is a better match.
A simple integration (pushing orders to Monta, writing back stock levels and retrieving track & trace) can go live relatively quickly. More complex scenarios involving multichannel orders, returns flows, partial shipments, ERP or OMS synchronisation and custom logic typically take longer. After an intake meeting, we provide a realistic estimate based on your systems and order flows.
We work with the official Monta REST API and webhooks, combined with the backend stack that suits you: Node.js, Python or PHP. We make use of the order, stock and returns endpoints, and connect to webshop connectors such as Shopify, WooCommerce and Magento, or integrate directly with your ERP or OMS. For real-time updates we use webhooks, with queueing and retry mechanisms for reliable processing.
The cost is determined by the complexity of the data flows, the number of systems and channels to integrate, the required synchronisation frequency, and the amount of custom work in the business logic, such as returns flows, partial shipments and multichannel orders. Ongoing management, monitoring and support also affect the total investment. We always provide a clear quote after a no-obligation review of your situation.
Yes. Order data contains personal data such as names and addresses, so Appfront builds in line with the OWASP ASVS: API credentials are kept in secure vaults, incoming webhooks are validated, permissions are scoped, and access is strictly separated per integration. We encrypt data in transit and document the data flows between your webshop, Monta and any marketplaces, so your record of processing activities remains complete and you can demonstrably comply with the GDPR.
Yes. Appfront regularly takes over existing Monta integrations, including those originally set up by another party or via a standard plugin. We review the API integration, the order and stock flows, the returns handling and the error handling, document the current setup and propose improvements. From that point on, we handle changes, extensions and monitoring, including timely rotation of credentials.
Monta is a good fit for webshops, D2C brands and retailers that outsource their e-fulfilment and want to scale without their own warehouse. Typical situations include a webshop that wants orders picked and shipped automatically, a brand selling across multiple marketplaces that wants all orders routed centrally to fulfilment, and fast-growing e-commerce businesses looking to professionalise their operations. It is less suitable if you run your own warehouse with a WMS. In that case, we will work with you to determine whether a WMS integration is a better fit.
Ready to build your Monta integration?
Tell us which webshop, ERP or marketplaces your orders come from, and how stock and returns need to synchronise with Monta. We're happy to think along about order flows, multichannel and custom work where standard plugins fall short. A no-obligation first conversation will give you a clear picture of the possibilities within half an hour.