Custom BigCommerce integration development
Appfront builds custom BigCommerce integrations that connect your webshop to your ERP, PIM, CRM or own application. Using the REST Management API V3 and webhooks, we synchronise products, stock, orders and customers in real time, and with the GraphQL Storefront API we enable headless commerce. You keep your catalogue and stock consistent everywhere, and orders flow automatically into your back office.
What is a BigCommerce integration?
BigCommerce is a SaaS e-commerce platform for B2C and B2B online stores, aimed at the mid-market and enterprise segments. You manage your catalogue, stock, orders and customers in BigCommerce, while the platform takes care of hosting, scalability and security. What sets BigCommerce apart is its open and thoroughly documented API: almost anything you can do in the control panel can also be driven programmatically.
In practice, a custom integration means: synchronising products and stock in both directions with your ERP or PIM, automatically passing orders on to your accounting or fulfilment, linking customer data to your CRM, and reacting in real time via webhooks whenever something changes in the store. For headless commerce, we retrieve catalogue and cart data via the GraphQL Storefront API and build a custom frontend on top of BigCommerce.
Appfront builds according to the official BigCommerce developer documentation and the OWASP ASVS security standard. We tailor the sync logic, scopes and error handling to your actual e-commerce processes, so the integration grows with your range and keeps running reliably during peak volumes and sales periods.
Open, complete API
The REST Management API V3 covers virtually all store data: products, catalogue, stock, orders, customers and more. Whatever you manage in the control panel, you can also control programmatically, which is ideal for two-way synchronisation with your back office.
Real-time webhooks
Webhooks relay what is happening in the store in real time: a new order, a stock change, an updated product or a new customer. Your backend responds immediately, without unnecessary polling, keeping things efficient and always up to date.
Headless commerce
With the GraphQL Storefront API, you can build your own frontend on top of BigCommerce, with catalogue, carts and checkout accessed via CORS-scoped tokens. This lets you sell through a custom webshop, app or multichannel setup, while BigCommerce handles the backend.
Our development process for BigCommerce integrations
We follow a proven methodology that removes uncertainty early and delivers a stable integration. From an initial analysis of your catalogue, order flows and back-office systems through to go-live and ongoing management, every step is aimed at an integration your team can understand and trust.
We map out which data needs to flow between BigCommerce and your systems (products, stock, orders and customers), in which direction, at what frequency, and which OAuth scopes are required for this.
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 BigCommerce integration delivers in practice
Every BigCommerce integration is set up specifically for your range, order flows and adjacent systems. Below are the capabilities we most often deliver for organisations that use BigCommerce as the core of their e-commerce.
REST Management API V3 & OAuth
The foundation of every integration: an OAuth API account with scoped access tokens (X-Auth-Token and store_hash). We grant each integration only the scopes it needs and build the API calls with proper rate limiting, retries and error handling.
Product & catalogue sync
Two-way synchronisation of products, variants, prices, categories and stock between BigCommerce and your ERP or PIM. Your range stays consistent everywhere and stock movements are processed immediately, so you don't oversell.
Order synchronisation
Orders flow automatically from BigCommerce into your accounting, fulfilment or WMS. We feed statuses such as shipped, paid or returned back into the store, so the customer and the back office always see the same picture.
Customer synchronisation
With the Customers V3 API, we integrate customer data, addresses and customer groups with your CRM or marketing platform. For B2B webshops, we connect customer-specific pricing and groups to your existing customer administration.
Headless via GraphQL Storefront API
Your own frontend on top of BigCommerce using the GraphQL Storefront API: catalogue, carts and checkout via CORS-scoped tokens. Ideal for a custom webshop, an app or a multichannel setup, while BigCommerce remains the commerce backend.
Webhooks & event automation
Webhooks on orders, products, inventory and customers trigger your own logic directly: an order confirmation to accounting, an inventory update to the PIM or an alert for a new customer. We validate incoming webhooks and handle errors gracefully.
Typical use cases in practice
A BigCommerce integration can look very different from one organisation to the next. We see a number of recurring patterns, and for each of them we have a proven setup that pays attention to catalogue, stock, order flows and the correct OAuth scopes.
B2C webshops
Consumer webshops with a large, fast-changing range that want their catalogue and inventory kept automatically in sync with their ERP, and orders passed on to accounting and fulfilment. See also our API integrations and e-commerce development.
B2B webshops
Wholesalers and manufacturers selling online to business customers, with customer-specific pricing, customer groups and order history. We integrate customers, pricing agreements and orders with your ERP and CRM, so the B2B ordering process fits seamlessly with your back office.
Mid-market & enterprise
Larger e-commerce organisations selling across multiple markets and at high volumes, who want a scalable SaaS platform without managing their own infrastructure. We build robust integrations with ERP, PIM and WMS systems, with rate limiting, retries and monitoring from day one. See also middleware.
Headless & multichannel
Organisations that want to run their own frontend, app or multiple sales channels on top of BigCommerce. With the GraphQL Storefront API and CORS-scoped tokens, we build a custom storefront, while BigCommerce handles the catalogue, carts and checkout as the backend.
Technology we use
We build BigCommerce integrations using the official REST Management API V3, the GraphQL Storefront API and webhooks, combined with the back-end stack that suits you. The precise choice depends on your back-office systems and whether you want headless commerce, so that your own team can manage or further develop the implementation.
Why Appfront for your BigCommerce 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 your existing systems and processes. An integration should not only work technically, but also add practical value to the way you work.
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.
See also our wider services around API integrations, middleware, custom software development and web app development.
- Experience with the BigCommerce REST Management API V3 and GraphQL Storefront API
- Specialists in integrations with ERP, PIM, WMS and CRM
- Familiar with catalogue, inventory, order and customer synchronisation
- Secure by default — access token rotation, webhook validation, scoped OAuth 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 aligned with your existing IT landscape
Security and privacy in BigCommerce integrations
A webshop continuously processes personal data and commercially sensitive information: customer details, addresses, orders and payment statuses. Appfront builds in line with BigCommerce security best practices and the OWASP ASVS. This means, among other things: access tokens kept in secure vaults, validation of incoming webhooks, scoped OAuth permissions and regular audits of the order and customer flows.
BigCommerce works with OAuth API accounts, where for each integration you can define exactly which scopes apply, so an integration never gets more permissions than strictly necessary. We document the data flows, scopes and webhook configuration so your processing register is complete and you demonstrably comply with the GDPR. Access runs over encrypted connections and we rotate tokens periodically.
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 BigCommerce integrations
Answers to the questions we get asked most often about BigCommerce implementations.
A BigCommerce integration is a technical link between your BigCommerce store and another system, such as your ERP, PIM, CRM, accounting software or a custom application. The REST Management API V3 exchanges products, stock, orders and customers programmatically, while webhooks pass on events in real time as soon as something changes in the store. For headless commerce, we also use the GraphQL Storefront API. An integration can be simple (orders sent to your accounting software daily) or extensive (full two-way sync of catalogue, stock, orders and customers across multiple backends).
BigCommerce is a good fit for growing B2C and B2B webshops in the mid-market and enterprise segment that want a SaaS platform with an open, well-documented API. It is strong for organisations that want to sell headlessly or across multiple channels, and that want to connect catalogue, stock and orders to an ERP or PIM. For very simple shops, a lighter platform may suffice; we will work with you to assess whether BigCommerce suits your scale and ambitions.
A simple integration, such as pulling orders via the REST Management API V3 and passing them on to your accounting software, is quicker to deliver than a full two-way sync of catalogue, stock, prices, orders and customers across several systems. Headless commerce via the GraphQL Storefront API usually takes longer. After an intake conversation, we'll give you a realistic estimate for your situation.
We work with the official BigCommerce REST Management API V3 and the GraphQL Storefront API, combined with the back-end stack that suits you: Node.js, Python, PHP, .NET, Ruby or Go. Authentication runs through an OAuth API account with scoped access tokens (X-Auth-Token and store_hash). For real-time updates, we use BigCommerce webhooks; for headless storefronts, CORS-scoped Storefront tokens.
Costs are determined by the complexity of the data flows, the number of systems to connect, the required synchronisation frequency and the amount of custom business logic. Ongoing management, monitoring and support also affect the total investment. We always provide a clear quote following a no-obligation analysis of your situation.
Yes. BigCommerce works with OAuth API accounts, where you grant only the scopes each integration needs, and access runs over encrypted connections. Appfront builds to the OWASP ASVS: access tokens are kept in secure vaults, incoming webhooks are validated, OAuth permissions are scoped, and rights are strictly separated per integration. We document the data flows so your record of processing activities stays complete and you can demonstrate GDPR compliance.
Yes. Appfront regularly takes over existing BigCommerce integrations, even when they were originally set up by another party. We review the API integrations, OAuth scopes, webhook configuration, sync logic and error handling, document the current setup, and propose improvements. From then on, we can handle changes, extensions and monitoring, including timely rotation of access tokens.
BigCommerce suits B2C and B2B webshops in the mid-market and enterprise segments that want to grow at scale without managing hosting and infrastructure themselves. Typical use cases include synchronising catalogue and stock with an ERP or PIM, passing orders on to accounting or fulfilment, linking customer data to a CRM, and selling headless or across multiple channels via the GraphQL Storefront API. It is less suited to very small shops, where we'll work with you to determine whether a lighter platform is a better fit.
Ready to build your BigCommerce integration?
Tell us which products, orders or customer data you want to synchronise, and which ERP, PIM or CRM BigCommerce needs to connect with. We're happy to help with catalogue sync, order flows, webhooks and headless commerce. A no-obligation first conversation will give you a clear picture of what's possible within half an hour.