BigCommerce integration specialists

BigCommerce API integration and platform bridging

Where BigCommerce sits at the centre of a wider stack, the risk is always orders, stock levels and customer records drifting out of sync. We build the bridge that keeps them aligned.

Fixed-scope engagements, delivered by UK-based integration engineers. Documentation and source code handed over on completion.

  • Management & Storefront API
  • Webhooks
  • Two-way sync

What we can connect BigCommerce to

BigCommerce (BigCommerce) holds your orders, products and customers. Every other system in the business holds a partial copy of the same data. Our role is to make one the source of truth and keep the rest aligned — through the BigCommerce API, webhooks where they exist, and a bridging layer where the destination platform has no usable interface of its own.

Accounting and finance

Push BigCommerce orders, refunds and payouts into your ledger as correctly coded invoices, with VAT treatment and nominal codes applied at the point of transfer.

Sage 50 / Sage 200, Xero, QuickBooks, NetSuite

ERP and stock control

Hold stock in one place. Levels, cost prices and product data flow out to BigCommerce; orders and allocations flow back in, with safeguards against overselling.

NetSuite, Microsoft Dynamics, Unleashed, Cin7

Warehouse and fulfilment

Send orders to your 3PL or WMS on payment, and return tracking numbers and fulfilment status to BigCommerce so the customer is notified automatically.

Mintsoft, Peoplevox, Despatch Cloud, in-house WMS

CRM and marketing

Keep customer records, order history and lifetime value aligned between BigCommerce and your CRM so that segmentation and service teams work from the same picture.

HubSpot, Salesforce, Zoho, Klaviyo

Couriers and shipping

Generate labels and manifests from BigCommerce order data, apply service rules by weight and destination, and write tracking back to the order.

Royal Mail, DPD, Evri, DHL, UPS, FedEx

Bespoke and legacy systems

A pricing engine, a manufacturing database, an in-house portal. Where documentation is thin we reverse-engineer the interface and wrap it in something maintainable.

SQL Server, MySQL, SFTP file exchange, SOAP services

Common BigCommerce integration use cases

Each is a defined, testable data flow rather than an open-ended development project.

01

Order-to-accounts automation

Every paid BigCommerce order arrives in the accounting system as an invoice with the right tax codes, nominal codes and customer record, including refunds and payment fees.

Outcome: finance close reduced from days to hours, no re-keying.

02

Real-time inventory synchronisation

Stock movements in the ERP or warehouse update BigCommerce within seconds, with buffer rules for lines sold across multiple channels.

Outcome: overselling and cancellation refunds effectively eliminated.

03

Product and price feed out

Product master data, variants, images, cost and RRP maintained once in the ERP and published to BigCommerce on a schedule or on change.

Outcome: one place to maintain a catalogue of any size.

04

Fulfilment and tracking round trip

Orders released to the warehouse or 3PL on payment; despatch confirmation, courier and tracking number written back to the BigCommerce order.

Outcome: fewer where-is-my-order enquiries, accurate customer notifications.

05

B2B and trade pricing

Customer-specific price lists, credit limits and account terms held in the ERP and enforced at the BigCommerce checkout for logged-in trade accounts.

Outcome: trade orders taken online without a separate quoting process.

06

Multi-store and marketplace consolidation

Several BigCommerce stores, plus Amazon and eBay, consolidated into a single order and stock pipeline through one bridging layer.

Outcome: one operational view across every sales channel.

How a BigCommerce API integration is delivered

Four stages, fixed scope agreed before any code is written. Typical delivery for a single-system integration is two to four weeks.

Stage one

Discovery and data mapping

We document the systems involved, the direction of each flow, and every field that must move — including the awkward ones such as tax, discounts and multi-currency.

Output: written integration specification.

Stage two

Fixed scope and estimate

The specification becomes a fixed-price proposal with a delivery schedule and defined acceptance criteria. No time-and-materials open ends.

Output: costed scope for sign-off.

Stage three

Build and testing

Development against a BigCommerce development or sandbox environment and a sandbox of the destination system, with your own data used for acceptance testing.

Output: tested integration and test evidence.

Stage four

Go-live and handover

Controlled cutover with monitoring in place, followed by handover of code, credentials and documentation, and a period of hypercare support.

Output: live integration, owned by you.

Have a BigCommerce data flow in mind? We will tell you what it takes before you commit.

Request a scope

BigCommerce API bridging when there is no direct connector

Off-the-shelf connectors assume both platforms are modern, documented and willing to talk to each other. In practice one side is usually a warehouse system from 2009, a bespoke database or an ERP whose vendor charges per field. Bridging is the work of putting a controlled layer between the two.

That layer normalises data formats, holds a queue so neither platform is overwhelmed, authenticated the way BigCommerce expects — OAuth 2.0 (API account) — and records every transaction so a disputed record can be traced end to end. It also isolates you from change: when BigCommerce deprecates an API version, only the bridge is updated.

Where a platform genuinely has no interface, we work with what exists — scheduled SFTP file exchange, direct database connectors, or a documented REST wrapper we build and host on your behalf.

Included in every bridge we build

  • Error handling with alerting when a transfer fails
  • Automatic retries that respect the platform API rate limits
  • A transaction log for tracing any individual record
  • Idempotency so a repeated webhook cannot duplicate an order
  • Field-level mapping documentation you can hand to any developer
  • A staging environment that mirrors production

BigCommerce integration FAQs

A single-direction integration between BigCommerce and one business system is typically delivered in two to four weeks, including discovery, field-level mapping, build against a sandbox, acceptance testing with your own data and supported go-live. Multi-system programmes are phased.

Other platforms we integrate

Each platform has its own integration guide covering authentication, available endpoints and typical data flows.

Discuss your integration

Call 01303 883111 or email hello@api-integrations.co.uk. We will tell you honestly whether an integration is the right answer to the problem you have described.