ERP and inventory
Two-way sync between Shopify and the system that actually owns your stock — so the storefront stops selling things you don’t have.
Shopify API integration
Connect Shopify to the systems you already run.
When no app on the store does what you need — or the one that does costs more per month than building it once. Admin API, Storefront API, webhooks, and middleware that doesn’t fall over quietly.
When this is the right call
Build it, or buy an app?
Buy the app when one exists, does roughly what you need, and is actively maintained. That’s most of the time, and we’ll say so.
Build it when the app doesn’t exist, when the closest option needs so much configuration that it’s fragile, when the subscription cost over two years exceeds the build cost, or when the data flow is specific enough to your business that no generic tool models it correctly.
The case against building: custom integrations need maintenance. Shopify deprecates API versions on a schedule, and a connection nobody owns will eventually break at the worst possible moment. If you don’t have a plan for who maintains it, buy the app.
What we build
Typical integrations.
3PL and fulfilment
Orders out, tracking back in, fulfilment status reflected accurately in Shopify and in the customer’s account.
CRM and marketing
Customer and order data flowing into the system your marketing team works in, with the fields they actually segment on.
Subscriptions and custom pricing
B2B price lists, tiered pricing, and purchase logic that Shopify’s native settings don’t cover.
Headless storefronts
Storefront API work where the front end lives outside Shopify but checkout stays inside it.
Internal tooling
Admin API scripts and small internal apps for bulk operations your team currently does by hand.
Process
How we approach it.
01
Map the data
What moves, in which direction, how often, and what happens when the two systems disagree. Most integration failures are unresolved conflict rules, not code.
02
Check the ceiling
Shopify’s API rate limits and the other system’s constraints, before design rather than after. This is what breaks integrations at scale.
03
Design for failure
What happens when the other system is down, returns a partial response, or sends the same webhook twice. Retries, idempotency, and alerting when something silently stops.
04
Build
Against a current stable API version, with the deprecation date written into the handover.
05
Test with real volume
Including the edge cases — refunds, partial fulfilments, cancelled orders, duplicate webhooks.
06
Document and hand over
What it does, where it runs, what breaks it, and when the API version needs upgrading. Written for whoever inherits it, not for us.
Who does the work
You deal with the person who builds it.
Questions
Answers, including the awkward ones.
Which Shopify APIs do you work with?
Admin API for order, product, inventory and customer data; Storefront API for headless and custom front ends; webhooks for event-driven flows; and Functions where checkout logic needs customising on Plus.
Where does the integration run?
Depends on the job. Some sit inside a private Shopify app, some as middleware on your own infrastructure. We’ll recommend based on who needs to maintain it, not on what’s fastest for us to build.
What happens when Shopify deprecates an API version?
Shopify releases quarterly API versions and supports each for a defined window. We record the deprecation date at handover so it’s a planned upgrade rather than an outage. If you’d rather not track it, that’s what a maintenance arrangement covers.
Can you integrate with a system that has no public API?
Sometimes — via file exchange, database access, or a vendor-provided endpoint. Sometimes not, and we’ll tell you early rather than after you’ve paid for discovery.
Will this slow down my store?
A well-built integration runs server-to-server and never touches the customer’s browser. If someone proposes doing it in front-end JavaScript, that’s a red flag.
Do you hand over the code?
Yes, with documentation. You’re not renting the integration from us.
Describe the integration.
Tell us what the two systems are and what needs to move between them. We’ll tell you whether an app already does it — and quote the build if not.
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