We connect QuickBooks to the systems your business already runs on — accounting, ERP, warehouse, CRM and courier platforms — so that invoices, payments and nominal codes move between them without manual intervention.
Fixed-scope engagements, delivered by UK-based integration engineers. Documentation and source code handed over on completion.
QuickBooks holds your invoices, customers and payments. 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 QuickBooks API, webhooks where they exist, and a bridging layer where the destination platform has no usable interface of its own.
Bring orders, refunds, gift cards and payment-provider fees from your storefronts into QuickBooks as correctly coded invoices and credit notes.
Shopify, WooCommerce, Magento, BigCommerce
Keep the ledger and the operational system agreed on customers, suppliers, products and nominal codes, with one owning system per field.
NetSuite, Dynamics, Unleashed, Cin7, Katana
Post Amazon and eBay settlements into QuickBooks with fees, refunds and marketplace-facilitated tax handled correctly.
Amazon SP-API, eBay, OnBuy
Reconcile Stripe, PayPal, GoCardless and bank feeds against QuickBooks so the cash position is current without manual matching.
Stripe, PayPal, GoCardless, Open Banking
Sync contacts, deals-won and subscription events so invoices are raised in QuickBooks from the same record the sales team closed.
HubSpot, Salesforce, Chargebee, Recurly
A job-costing database, a booking system, an in-house portal — wrapped in a documented interface and mapped to your chart of accounts.
SQL Server, MySQL, SFTP, SOAP services
Each is a defined, testable data flow rather than an open-ended development project.
Paid orders from every channel become invoices in QuickBooks with tax codes, nominal codes and the right customer, including part-refunds.
Outcome: month-end reconciliation stops being a manual job.
Purchase orders and supplier bills raised in the operational system flow into QuickBooks with matching references and approval state.
Outcome: AP works from one queue, not two.
Stripe, PayPal and marketplace settlements are posted to QuickBooks with fees separated, so the bank reconciles cleanly.
Outcome: cash position accurate daily.
Item codes, tax rates and cost prices are maintained once and kept identical between QuickBooks and the systems that quote or sell.
Outcome: no more mismatched SKUs at invoice time.
Transactions are routed to the correct QuickBooks company with FX applied on a consistent rule, and intercompany entries kept in step.
Outcome: group reporting without spreadsheet rework.
Overdue balances and credit limits from QuickBooks are surfaced in the CRM or storefront so sales and checkout respect them.
Outcome: fewer orders shipped to accounts on stop.
Four stages, fixed scope agreed before any code is written. Typical delivery for a single-system integration is two to four weeks.
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.
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.
Development against a QuickBooks 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.
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 QuickBooks data flow in mind? We will tell you what it takes before you commit.
Request a scopeA generic connector works until the moment your setup differs from the demo — a custom field, a second warehouse, a system on the other end with no API at all. At that point the integration has to be built around your actual data, not a vendor's assumption of it.
In practice that means a queue that absorbs traffic spikes, retries failed calls against the QuickBooks Online API rate limits, and a log of every transaction so a disputed record can be traced end to end. When QuickBooks changes its API, only the bridge needs updating — not every downstream system.
If there is no usable interface at all, the fallback is a flat-file exchange, a direct database connection, or a small REST wrapper we write and host ourselves — whichever fits what is actually there.
A single-direction integration between QuickBooks 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.
Yes. Where the other platform has no modern API we bridge it — scheduled file exchange over SFTP, a database-level connector, or a middleware layer that exposes a documented REST interface to QuickBooks while speaking the legacy system's own protocol behind it.
You do. Source code, credentials, configuration and documentation are handed over on completion, and there is no licence fee for continuing to use it. Monitoring and change support are available under a separate agreement.
Major platforms version their APIs and support each version for a defined period. Integrations under a support agreement are reviewed each release cycle and migrated ahead of deprecation dates; for handed-over work the version dependencies are documented so your team can plan.
Each platform has its own integration guide covering authentication, available endpoints and typical data flows.
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.
