Integrations & Custom Apps
Connect Shopify to the systems your team already relies on.
Autonomous Technologies builds Shopify integrations and custom apps that connect a store to ERP, OMS, WMS, 3PL and CRM systems, defining which system owns each record and what happens when a sync fails.

An integration is a workflow, not a line item
Product, inventory, order, customer and fulfilment data move through different systems at different times. We identify the system of record, expected state, owner and consequence when those states diverge.
Choose the intervention the workflow actually needs.
Use existing capability
When it is stable and fits the workflow.
Configure an app
When it reduces delivery time without creating opaque dependencies.
Build a resilient integration
When systems need dependable data exchange, reconciliation and recovery.
Build an internal tool
When operators need a controlled way to manage exceptions or a workflow no application owns well.
Design for the unhappy path
Validation, queues, retries, alerting, reconciliation, audit trail and recovery matter as much as the happy-path demo. We design those boundaries before launch.
What we can own
Discovery, system and data mapping, API, webhook and middleware work, test environments, launch controls, documentation and ongoing integration governance.
From system map to monitored handoff
The delivery path names the architecture, failure paths and long-term owner before launch.
- 01
System map
Map systems of record, states, owners and consequences when data diverges.
- 02
Architecture decision
Choose app configuration, a custom app, direct integration or middleware.
- 03
Implementation
Build the agreed exchange, validation and operator controls.
- 04
Failure-path QA
Test retries, replay, alerting, reconciliation and recovery.
- 05
Monitoring and handoff
Document the checks, escalation path and owner after launch.
How we keep integrations trustworthy
We show the system-of-record decisions, the reconciliation checks and the recovery path in documentation you keep, so an integration stays understandable after launch. The Shopify ERP integration test worksheet (CSV) sets out the go-live tests an integration has to pass, with each acceptance condition left for your systems to confirm. The field-level ownership map behind them is explained in the Shopify ERP integration guide. Named integration case studies are added here as clients approve their use.
How to assess any Shopify integration partner, including us
Five questions that separate a designed integration from a demo. Ask every vendor on your shortlist the same five.
Field-level ownership written down first
Ask which system owns each field before anything is built. Does Shopify or the ERP own inventory quantity, price, the customer record, the order after export? Without that in writing, conflicts get settled by whichever update arrives last.
The unhappy path is in the plan
Ask what the design does with duplicate deliveries, delayed updates and missing updates. A demo shows the happy path. The design has to say what happens on the other ones.
Failures have an owner and an alert
Ask who sees a failed sync, how they see it and how quickly. An exception view naming the affected record, the reason and a responsible team beats a log file nobody opens.
Complete journeys tested before go-live
Ask whether whole order journeys are tested across every connected system, from order placed to fulfilment confirmed. Partial shipments, order edits after export and destination outages each need an agreed expected result.
Documentation you keep
Ask what is handed over: the ownership decisions, the reconciliation checks and the recovery path. If that knowledge stays with the vendor, you have bought a dependency.
The integration method, published
Read how we decide field ownership and failure handling before you choose a vendor.
- Shopify ERP integration: who owns each field and what happens when a sync fails sets out the field-level ownership map, the quantity definitions behind an inventory sync and the go-live test list, with the integration test worksheet (CSV).
- Importing old invoices into a Shopify B2B account applies when the integration touches B2B invoicing, where historic records need different treatment from ongoing order sync.
Common questions
What Shopify integrations do you build?
Connections between Shopify and the systems that run the operation: ERP, PIM, OMS, WMS and 3PL, plus CRM, payments, shipping and custom internal tools. The work covers discovery, system and data mapping, API, webhook and middleware development, test environments, launch controls, documentation and ongoing integration governance.
What happens when an integration sync fails?
The affected record stays traceable, with a reason and an accountable owner. Temporary failures are retried under a controlled policy; invalid data is corrected before another attempt. After a repair we verify the business result, not only the job status, so a retry does not create a second record or reverse a newer valid change. Reconciliation exists to find the updates that never arrived.
Who owns which data after the integration is live?
Whichever system you and we agree owns it, named field by field before the build. For every shared field we record the owning system, the permitted writers, the sync direction, the expected latency and the rule for resolving conflicting updates. That map is part of the handover.
Do you maintain integrations after launch, or only build them?
Both options exist and the choice is agreed before work starts. We can hand over the documentation, monitoring checks and escalation path for your team to run, or keep ownership ourselves under a scope agreed in advance. That ongoing arrangement is described on the managed ecommerce page. Neither option implies unlimited support.
Shopify Development & Design
New builds, redesigns and rebuilds shaped around how your business sells.
Tell us which systems need to agree, where the handoff fails today and what the business cannot afford to interrupt.
Latest guides
Shopify & Ecommerce
Shopify NetSuite integration: connector fit, ownership and operating cost
Choose between the NetSuite Connector, an integration platform and a custom build by testing fit against your real flows, deciding who owns each record, and costing the monthly work.
Shopify & Ecommerce
Shopify inventory sync problems: state, location, timing and ownership
In the integrations we work on, inventory sync discrepancies usually resolve to one of four things: two systems describing different states, different locations, different moments, or two writers on one field. Here is how to tell which, and what evidence proves it.
Shopify & Ecommerce
Shopify 3PL integration: handoffs, exceptions and go-live tests
A Shopify 3PL integration is five handoffs and a set of ownership decisions. Name who reconciles a short receipt, who resolves short picks, split locations and address changes, and who grades a return, before the first order ships.
Shopify & Ecommerce
Shopify ERP integration: ownership, failures and go-live tests
Define which system owns each record, what happens when a sync fails, and the tests that prove your Shopify ERP integration can support daily operations.
Shopify & Ecommerce
Shopify migration checklist: prove the store is ready to launch
Plan the data, redirects, integrations and cutover tests that determine whether your Shopify migration is ready for real orders. Includes an acceptance worksheet.
Shopify & Ecommerce
Importing Old Invoices into a Shopify B2B Account: The Migration Playbook
Bringing legacy B2B invoice history into Shopify Plus's B2B account schema is the migration that breaks more launches than any other. Here is the five-phase playbook: scope, schema mapping, staged imports, reconciliation, and the failure modes we see most.