BigCommerce custom app development for what the marketplace doesn't cover
We build custom apps and API integrations against BigCommerce's REST and GraphQL APIs, to automate, extend or connect your store the way your business works.
- REST and GraphQL APIs
- B2B Edition experience
- Hourly, from $90/hr
Test drive our developers. 3 guaranteed hours of free BigCommerce work.
Hand us a real task and our senior engineers do the first 3 hours on us. No obligation to hire us, just a straight look at how we work.
- Scope your idea
- Build a small piece
- Review your code
- Fix a bug
BigCommerce gives you more than one way to build
BigCommerce is API-first, which means most of what you see in the control panel can be reached from code. That is a real advantage, and it also means there is more than one way to build the same thing.
The right choice depends on whether you need a screen in the control panel, a background integration, or a change on the storefront. We pick the lightest option that does the job.
Common reasons to build custom
- No marketplace app fits your workflow
- You pay for several apps to approximate one process
- Data must flow to or from an ERP, PIM or 3PL
- B2B pricing and ordering rules are specific to you
- You want a feature without a recurring per-order fee
A typical custom app and API integration
Store event
Order, product, customer
Webhook
BigCommerce notifies the app
Your app
Rules, mapping, retries
External system
ERP, PIM, 3PL, CRM
Write back
Status and tracking in the store
The same pattern works in reverse: stock levels or prices change in your ERP, and the app updates BigCommerce through the Management API.
The BigCommerce toolbox
Management API (REST)
Catalog, orders, customers, pricing, shipping and more. The workhorse for back-office integrations and bulk work.
GraphQL Storefront API
Fast, flexible queries for storefront data. Used by custom frontends, including headless builds.
Webhooks
Event notifications that trigger your app the moment an order, product or customer changes.
Stencil themes and scripts
Storefront changes through theme code and scripts, when the feature belongs on the page rather than in a back-end app.
B2B Edition workflows
Company accounts, quotes, custom pricing and approval logic built around how your buyers order.
Headless frontends
A custom storefront on BigCommerce's APIs when the theme layer is too limiting.
The lightest thing that works
API account only
- Server-to-server sync with no screen
- One store, one integration
- Stock, price or order feeds
- Simplest to host and maintain
App with a control panel screen
- Your team needs to configure or approve
- Installed through OAuth
- Can serve multiple stores
- Needs hosting, auth and a UI
Storefront change
- The feature shows to shoppers
- Stencil theme or script changes
- Or a headless frontend
- Tested across themes and devices
From workflow to working app
- 01
Scope the workflow
We map exactly what the app should automate or expose, and which systems it touches.
- 02
Build and test
Development against a sandbox store, with realistic data and the edge cases your orders produce.
- 03
Install and verify
A careful rollout to your live store, with monitoring and a checklist for what should happen.
- 04
Support and extend
Ongoing support as BigCommerce and your requirements change.
Frequently asked questions
What counts as a custom app on BigCommerce?
An app or integration built for your store using BigCommerce's APIs, rather than a public app from the marketplace. It can run as a background integration or include its own screen in the control panel.
Can you connect BigCommerce to our ERP or PIM?
Yes. A custom app is a common way to sync products, inventory, orders and customer data between BigCommerce and your back-office systems, with retries and error reporting. See our integration pages too.
Do you build for BigCommerce B2B Edition?
Yes. We build custom workflows for B2B ordering, such as company accounts, quotes, custom pricing and approvals.
Do we need a headless storefront?
Not usually. Many needs are met by a Stencil theme and the right app. Headless is worth considering when the theme layer limits your design or performance goals, and we will say so honestly if it is not.
We have an idea but no spec. Can you help?
Yes. Discovery turns an idea into a written scope we can estimate, and tells you what is worth building and what is not.
Who keeps the app working over time?
We can. APIs and platform features evolve, so we recommend a support arrangement, or a clear handover to your own developers.
Get a quote for BigCommerce Custom App Development
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