With Shopify headless commerce, companies no longer have to rely on Shopify themes to manage the appearance and functionality of the store. Separation of backend and frontend allows brands to develop custom sites on platforms such as mobile and desktop more quickly.
But once the frontend is separated, backend tools must work even harder. Your ERP should handle orders and stock levels. Your OMS must track deliveries across channels. Your CRM needs to track customer actions in real-time.
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If these tools don’t work well together, your entire system can fail. Any brands looking to expand should have a powerful headless ERP integration and a headless CRM integration with Shopify. These integrations enable teams to work quicker, prevent errors, and scale.
The global headless commerce market size is expected to reach $3,811.3 million by 2027. This shows why integration is not just useful; it is now necessary.
What Is Headless Commerce and Why Does It Need Integration?
Headless commerce is a term used to describe a setup where the frontend of the site, which customers view, and the backend, which processes data and logic, are separate. This arrangement enables Shopify developers to create a custom user experience using a React or Vue toolset, while Shopify handles checkout and product information.
ERP (Enterprise Resource Planning): It is used to manage inventory, finances, human resources, and manufacturing. It is the heart of your business.
OMS (Order Management System): An order management system accommodates the source of orders, the processing methods for orders, and the warehouse that will dispatch the orders.
CRM (Customer Relationship Management): This is used to maintain information regarding every customer, including their website visits and purchase records.
Why Headless Commerce Needs ERP, CRM, and OMS Syncing
Without proper connections between Shopify headless and backend tools:
Your data will be inconsistent
Staff will waste time entering data manually
Customers may get wrong inventory updates or late orders
If you connect your ERP, CRM, and OMS correctly, your store operates smoothly and effectively meets customer needs.
Why Integrate ERP with Shopify Headless?
Here are the top benefits of headless ERP integration:
Automate the Flow from Checkout to Fulfillment
Once a customer places an order on your headless site, the information must be instantly transmitted to your ERP. The ERP then updates the stock, initiates the purchase order, and triggers the shipping process.
Eliminate Manual Errors That Slow You Down
Manual steps, such as copying shipping addresses or entering invoice data, can cause delays and mistakes. When you integrate ERP with Shopify headless, those steps happen automatically.
Unlock Smarter Business Insights
When you connect sales data and customer behavior inside your ERP, you can forecast demand, track profit, and measure lifetime value more easily.
Core Integrations You Should Focus On
Before you start integration, know which systems are essential. Your Shopify headless site should connect with these main tools:
Shopify Headless ERP Integration
Shopify headless ERP integration manages much more than just accounts. They also track inventory, vendor details, and supply chain activities.
Live syncing keeps the frontend stock data accurate
Prevents selling items that are not in stock
Every sale updates financial records in real time
Popular ERPs to integrate with Shopify headless:
NetSuite for scaling businesses
SAP Business One for advanced operations
Odoo for modular business needs
Microsoft Dynamics 365 for large businesses
Let’s Plan Your Headless Shopify Stack
Hydrogen, GraphQL, backend sync—mapped with precision
By utilising Shopify’s headless ERP integration, you can enhance supply chain efficiency, manage stock across multiple locations, and make more accurate forecasts.
Shopify Headless OMS Integration
A Shopify headless OMS integration controls how you manage orders from different sales channels.
Handle Shopify, eBay, Amazon, and store sales in one system
Prevent selling more than what you have
Send orders to the closest warehouse for faster delivery
The OMS acts like a central hub for all orders. Integration ensures real-time inventory and shipping data appear correctly on your headless storefront.
Shopify Headless CRM Integration
Your CRM helps you keep customers coming back.
Track every customer action, from returns to chat messages
Group customers for targeted deals
Run loyalty programs and re-marketing flows using real-time data
When ERP, OMS, and CRM are connected, your business gains:
One view of all data
Auto updates for inventory, orders, and customer activity
Smooth workflows without delays or errors
How to Use APIs to Connect Shopify Headless with ERP, OMS, and CRM
Below are easy ways APIs to connect Shopify Headless with ERP, OMS and CRM:
The Power of API-First Integration
Shopify offers Storefront and Admin APIs that enable you to transfer data between the frontend and backend. APIs can:
Push data right after customer actions
Pull live stock and user data instantly
Update all systems within seconds
This forms the base of your Shopify headless API integration.
Real-Time vs Scheduled Sync: Pros and Cons
Real-time sync sends updates immediately, but requires additional setup.
Scheduled sync is easier to run, but may cause short delays.
Customized Endpoints for Custom Needs
In headless setups, you choose the endpoints.
Pick which data you want to expose
Set rules for when and how data moves
Adjust formats to match each system
This gives complete control over how your headless commerce data moves.
Best Practices for Successful Integration
Below are effective best practices for successful integration:
Use Middleware or Custom Connectors
The basic workflows can be handled with the help of tools such as Zapier, Celigo, and MuleSoft. To have greater control, developers can setup direct connectors between ERP, OMS, and CRM systems.
Start with ERP First
Always begin with the ERP. That is where your product data, stock levels, and finance systems are based. Once ERP integration is solid, add OMS and CRM.
Map Workflows Before You Build
Before coding, plan these steps:
Decide what data you need to sync
Set clear paths for where it should go
Define when each sync happens
Use diagrams or charts to visualize the plan.
Test Everything
Run full tests using real examples:
Place test orders
Track update speed
Check for sync delays
Fix issues before going live.
Technical Example: Data Flow from Shopify to ERP (Order-to-Invoice)
Here is how an order moves through a connected system:
A customer places an order on your Shopify headless store
The OMS checks the shipping address and selects the right warehouse
OMS connects with ERP to update stock and create shipping orders
CRM logs the order, sends confirmation, and starts post-sale messages
ERP makes the invoice, updates accounts, and marks the order as completed
This full data loop ensures all systems are up to date and prevents missed steps.
Below are the top ways headless integration improves omnichannel growth:
Sync Data Across All Selling Channels
Whether your customer shops online, on mobile apps, or in a physical store:
Stock levels are updated across all channels
Orders go out from the nearest location
Prices and availability stay consistent
That is how your Shopify headless order management system keeps up with every sales point.
Unified Customer Insights
With ERP, OMS, and CRM linked, you see the whole picture:
What customers buy
How often do they shop
Which channels do they use the most
You can then improve marketing, service, and stock based on real behaviour.
Want a Fully Integrated Shopify Headless Store?
If you’re looking for a Shopify headless store that operates seamlessly behind the scenes, CartCoders can help.
We connect your frontend with ERP, OMS, and CRM tools without hassle. Whether you’re using SAP, Odoo, NetSuite, or Salesforce, we help them work together seamlessly.
APIs made for your processes
Middleware with smart routing
Scalable builds for any sales channel
Fast syncing with fewer problems
Let’s build a system that powers your business with speed and control.
Conclusion
Headless commerce offers freedom and speed, but the real benefit comes from smart connections. By linking Shopify headless with ERP, OMS, and CRM, you can achieve better order processing, reduce errors, and create a more personalized shopping experience.
Integration is key. Without it, your backend can’t keep up with your frontend. Start planning your setup now.
CartCoders creates custom Shopify headless integrations with ERPs, OMS tools, and CRMs, such as Salesforce and HubSpot.
Ready to run your store like an intelligent machine?
As the CTO at Shiv Technolabs & CartCoders, I am liable for instigating, planning, integrating, and implementing the organization's strategic orientation.
I gather the most significant tech news in addition to sharing the information I gained while serving as the CTO of Shiv Technolabs, a renowned web and mobile app development company. I am pleased to answer questions as a most valuable expert for Shiv Technolabs Private Limited and to share my experience. I offer a keen insider's perspective on technical advancements.
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