The goal is not simply to connect two platforms. We design integrations so products, inventory, orders, customer data, and fulfilment updates can move reliably between Shopify and the rest of your tech stack without depending on manual data entry.
How data moves through the business
PIM
Product data
ERP
Pricing · Inventory
Shopify API
CRM
Customers · Accounts
WMS / Fulfilment
Orders · Tracking
Connect Shopify with ERP, CRM, PIM, and Fulfilment Systems
Shopify often sits inside a much broader operational setup. Product data may come from a PIM, inventory may be managed in an ERP or warehouse system, orders may need to flow into fulfilment software, and customer information may also need to reach a CRM or accounting platform.
We build API integrations with Shopify around those real data flows, defining what each system is responsible for and how information should move between them.
That means the integration is designed around the way the business actually operates, rather than treating Shopify as an isolated platform or relying on teams to keep the same data updated manually in several systems. Where the ERP is the system at the centre of that work, our Shopify ERP integration service goes into more detail.
Keep Data in Sync Across Shopify and External Systems
A reliable integration needs to support data moving in both directions. Shopify may receive product, pricing, or inventory updates from another system, while orders, customer information, and fulfilment data may need to move out of Shopify and back again as those records change.
We define those flows around a clear source of truth for each type of data, so connected systems stay aligned without teams having to update the same information manually in several places.
PIM / ERP
Products · Pricing
ERP / WMS
Inventory
Shopify
Products · Customers · Orders
ERP / Fulfilment
Orders · Fulfilment
CRM
Customers · Accounts
Products, Pricing, and Inventory
Product information, prices, and stock levels can be managed in systems such as a PIM, ERP, or warehouse platform and then synchronised with Shopify through the API.
This keeps the storefront aligned with the systems that actually control product and inventory data, while reducing manual updates and the risk of inconsistent information across platforms.
Orders, Customers, and Fulfilment
When an order is placed in Shopify, the relevant data can be sent automatically to ERP, warehouse, fulfilment, CRM, or other operational systems.
Updates can also return to Shopify, including inventory changes, fulfilment status, tracking information, or other order updates. This supports automated workflows such as order routing and fulfilment updates while reducing repetitive data entry and operational errors.
Custom Shopify API Integrations and Webhooks
We build custom integrations around the Shopify APIs and event triggers that best match the data flow and operational requirements of each project.
The technical setup depends on what needs to be exchanged, which system owns the data, how quickly updates need to happen, and how the integration should respond when something changes.
Shopify Admin API and Storefront API
For administrative and operational integrations, we primarily work with Shopify's GraphQL Admin API to access and update data such as products, inventory, orders, customers, and fulfilment information.
The Storefront API is used when a customer-facing application or custom storefront needs access to Shopify commerce data. Existing integrations built on Shopify's legacy REST Admin API can also be reviewed or migrated where needed.
Shopify Webhooks for Event-Driven Updates
Webhooks allow connected systems to react when something happens in Shopify instead of constantly checking for changes.
For example, a new order, inventory update, customer change, or fulfilment event can trigger the integration to send the relevant data to another system automatically. This makes event-driven workflows faster and reduces unnecessary API requests.
Direct API Integration or Middleware?
Not every Shopify integration needs the same architecture. A direct connection between Shopify and one external system may be the simplest option, while more complex environments can require a middleware or integration layer to manage data across several platforms.
We choose the approach based on the number of systems involved, the complexity of the data flows, and how much control the business needs over routing, transformations, and error handling.
- 01
Direct System-to-System Integration
For simpler setups, Shopify can connect directly with a single ERP, CRM, PIM, warehouse, or fulfilment system.
This approach can reduce unnecessary complexity when the integration has clear responsibilities, limited data flows, and only a small number of systems that need to communicate.
→ - 02
Middleware for Complex Commerce Architecture
When Shopify needs to exchange data with several systems, middleware can act as the layer that coordinates those connections.
It can control how data is routed, transformed, retried, and passed between Shopify, ERP, PIM, WMS, CRM, or other platforms, making complex integrations easier to manage and maintain.
→ - 03
Shopify Plus API Integration for Enterprise Systems
A Shopify Plus API integration is often part of a wider enterprise setup where Shopify works alongside ERP, fulfilment, warehouse, PIM, internal tools, or other business systems.
In those environments, the integration architecture needs to handle larger data volumes, more complex workflows, and stricter operational requirements. Shopify Plus also provides higher Admin API capacity, which can be useful when integrations need to process more frequent or data-heavy requests.
Our Shopify API Integration Process
- 01
Discovery and data flow mapping
We review the systems involved, define which platform owns each type of data, and map what needs to move between Shopify and the rest of the stack.
- 02
Integration architecture
We decide whether a direct connection or middleware is the better fit and define the APIs, webhooks, mappings, and data flows required.
- 03
Development and automation
We build the integration logic, data mappings, event triggers, and automated workflows around the approved architecture.
- 04
Testing, monitoring and launch
Before launch, we test synchronisation, error handling, edge cases, and the operational workflows that depend on the integration.
Shopify Integration Work Built Around Real Operations
Our Shopify work includes custom integrations, API development, automation, and complex commerce setups where Shopify needs to operate reliably alongside other business systems.
Explore our Shopify projects to see how we approach integrations and custom development around real operational requirements.
Full redesign and Shopify rebuild from scratch for a Serbian clog and slipper brand, replacing a slow custom admin with courier, fiscalisation and AI-chat integrations, plus native iOS and Android apps.
Custom Shopify Plus checkout-extensibility app for a premium New Zealand Manuka honey brand — upsells where they actually convert.
Conversion-rate work and custom Shopify apps for a Swiss 2-week tattoo brand, including an AI tattoo generator.
Connect Shopify to the Rest of Your Business
A good integration should reduce operational friction, not introduce another system your team has to manage manually. We build Shopify API integrations around clear data ownership, reliable synchronisation, and workflows that fit the way your business actually operates.
Shopify API Integration Questions
What is Shopify API integration?
Shopify API integration connects Shopify with external systems so data can move automatically between them. This can include products, inventory, prices, orders, customers, fulfilment updates, and other operational data.
What systems can Shopify integrate with?
Shopify can integrate with ERP, CRM, PIM, warehouse, fulfilment, accounting, search, internal tools, and other systems that expose the required APIs or integration methods.
Can Shopify sync data in both directions?
Yes. Shopify can both send data to external systems and receive updates from them. The exact direction depends on which platform owns each type of data and how the integration is designed.
What are Shopify webhooks used for?
Webhooks notify connected systems when something changes in Shopify, such as a new order, inventory update, customer change, or fulfilment event. This allows the integration to react without constantly checking Shopify for updates.
When does a Shopify integration need middleware?
Middleware is usually more useful when Shopify needs to exchange data with several systems or when the integration requires more control over routing, transformations, retries, and error handling. Simpler setups may work better with a direct API connection.
Can you build Shopify Plus API integrations?
Yes. We build Shopify Plus API integrations for enterprise setups where Shopify needs to work with ERP, PIM, warehouse, fulfilment, internal tools, or other systems as part of a broader commerce infrastructure.