eCommerce ERP Integration: How to Connect Orders, Inventory, and Finance

Running an ecommerce business means keeping multiple parts of the operation managed at the same time.

For instance, a customer places an order. Payment needs to be recorded. Stock has to be updated. The warehouse needs the order details. Finance needs the right information for reporting, refunds, and reconciliation.

When these activities stay in different systems, staff often end up moving data between them manually. That may work with a small number of orders, but it becomes harder to manage as sales grow.

This is where ecommerce ERP integration can help.

Connecting an ecommerce platform with an ERP allows order, inventory, customer, and financial information to move between systems without relying on the same data being entered several times.

For UK ecommerce businesses, this can become particularly useful when order volumes increase, new sales channels are added, or finance and operations need better access to the same information.

What is eCommerce ERP Integration?

eCommerce ERP integration connects an online store with an ERP system so information can move between them.

The ecommerce platform normally handles the customer-facing side of the business, including products, online orders, customer details, payments, and returns.

The ERP deals with much of the work behind those orders. This can include inventory, purchasing, finance, warehousing, invoicing, and reporting.

When the systems are connected, an online order can move into the ERP for processing. Stock can be updated, warehouse teams can work from the order information, and relevant financial data can be recorded in the ERP.

The exact setup depends on the platforms involved and how the business handles its processes.

Why Do Ecommerce Businesses Need ERP Integration?

An ecommerce platform is designed to take orders. It is not necessarily designed to manage everything that happens after an order is placed.

For example, a customer may see a product as available online, place an order, and then find out that the warehouse has already sold the last unit through another channel.

Finance can face a similar problem. Sales information may stay in the ecommerce platform while invoices, refunds, fees, and reporting are handled elsewhere.

Someone then has to bring all the information together.

ERP ecommerce integration can reduce this manual work by allowing the systems to exchange the information each team needs.

The aim is not to make the ecommerce platform and ERP do the same job. Each system can continue handling its main role while important information moves between them.

How a Typical Ecommerce ERP Integration Works

A simple setup might look like this:

Shopify → Connector/API → Business Central → Warehouse & Finance

Shopify handles the online store and customer orders. The connector or API moves the required data into Business Central, where inventory, purchasing, and finance can be managed.

Other systems can stay around this flow. For example, a payment provider can send transaction data, while marketplaces can feed additional orders into the same process. A warehouse or fulfilment system can also exchange stock and shipment information with Business Central.

The exact setup depends on which systems the business already uses and where each type of data needs to be managed.

How is an eCommerce ERP Integration Built?

There is no single method for building an ecommerce ERP integration.

Some businesses can use a native connector. This is often the simplest option when the ecommerce platform and ERP already support the required processes.

An API integration gives more control over how data is exchanged. This can be useful when standard connectors do not cover a particular requirement.

Businesses with several applications may use middleware or an integration platform to manage the flow of data between systems. This can be useful when the ecommerce platform needs to exchange information with an ERP, warehouse system, payment provider, CRM, or other applications.

There are also cases where custom integration is needed because the existing systems have specific requirements.

Before the integration is built, the business needs to decide how the data will work.

Data mapping determines how information in one system matches information in another. The team also needs to decide how often different data should sync. Stock may need frequent updates, while some reporting information can be handled on a schedule.

Error handling is also important. If an order does not reach the ERP, it requires a way to identify and correct the problem.

It is also worth deciding which system is the main source of information for each area. Business Central might be the main system for inventory and finance, for example, while Shopify remains responsible for the online storefront.

These decisions help prevent conflicts when information does not match.

Connecting Orders Between Ecommerce and ERP

Orders are usually one of the first areas businesses look at when planning an integration.

Without a connection, staff may need to download orders from the ecommerce platform and enter them into the ERP. That can become a large amount of repetitive work as order volumes grow.

With ecommerce integration with ERP, order information can move between the systems automatically, depending on the setup.

This may include customer details, products, quantities, prices, discounts, delivery information, tax details, and payment information.

The integration also needs to account for what happens after the original order.

Cancellations, partial refunds, returns, failed payments, and order changes all need to be handled correctly.

That is why it is better to design the integration around the full order process rather than simply connecting two systems.

Keeping Ecommerce Inventory in Sync

Inventory is often one of the first areas where disconnected systems cause problems.

A business may sell through its website, marketplaces, physical stores, or other channels. If each channel has a different view of available stock, keeping those figures accurate becomes difficult.

An ERP can act as the main source for inventory information.

When an order is received, available stock can be reduced. When new goods arrive, inventory can be increased. That information can then be shared with the ecommerce platform.

This helps avoid situations where products appear available online when they are already assigned to another order.

The setup may need to account for several warehouses, stock already allocated to orders, returned goods, and different sales channels.

For a larger ecommerce operation, these details are important. A basic stock update may not be enough.

Connecting Finance to Ecommerce Sales

Getting an order into the ERP is only part of the finance process.

An ecommerce sale can involve the original order, payment provider, transaction fees, tax, shipping costs, refunds, and returns. These events do not always happen at the same time.

That can make reconciliation difficult when the ecommerce platform and finance system are separate.

A typical flow might look like:

Shopify sale → payment provider → fees and payment → refund or return if needed → Business Central → financial reporting

The order record and payment record are not necessarily the same thing. A customer can place an order before the payment is settled, while a refund may happen much later.

Microsoft's Shopify Connector also supports the synchronisation of transactions and payouts, which can help businesses review payment information alongside their Business Central sales records.

This is why the finance side of an integration needs some planning. Simply sending sales totals into the ERP may not give finance teams enough information to reconcile payments properly.

Shopify Business Central Integration

Shopify is commonly used for the online store, while Microsoft Dynamics 365 Business Central can handle finance, inventory, purchasing, warehousing, and other back-office processes.

For businesses using both platforms, connecting them can reduce the amount of order and stock information that staff have to enter manually.

Business Central Online includes Microsoft's Shopify Connector, which supports synchronisation between Shopify and Business Central. Depending on the configuration, this includes products, inventory, customers, sales orders, fulfilments, transactions, and payouts.

The connector supports different data flows rather than requiring everything to move in both directions. For example, a business may manage product and inventory information in Business Central while Shopify remains the main customer-facing store.

Orders can be imported into Business Central for processing, while inventory and fulfilment information can be sent back to Shopify.

The exact functionality depends on how the connector is configured. Microsoft also provides settings for order processing, fulfilment, returns, refunds, payment methods, and synchronisation schedules.

One important point: Microsoft's built-in Shopify Connector is available for Business Central Online but not on Business Central on-premises.

What About Returns and Refunds?

Returns should be considered when the integration is planned rather than added later.

The original order may have been delivered successfully, but a customer can return an item days or weeks later.

The ecommerce platform needs to record the return. Inventory may need to change. Finance may need to issue a refund or credit.

Microsoft's current Business Central Shopify Connector documentation includes support for returns and refunds as part of Shopify order processing.

The wider point is simple: the integration should cover the order lifecycle, not just the first transaction.

What Should You Check Before Integrating an ERP With Ecommerce?

Start with the process rather than the technology.

Look at how an order moves through the business today.

Where does the order start? Which system holds the customer record? Where is stock managed? Which system creates the invoice? How are payments and refunds recorded?

It is also worth deciding what happens when something goes wrong.

If an order fails to reach the ERP, someone needs to know. If a stock update fails, there should be a way to identify the difference and correct it.

These details are easy to overlook during an integration project, but they can have a big effect after go-live.

ERP for Ecommerce UK Businesses

UK ecommerce businesses can have different requirements depending on their size, sales channels, warehouses, and finance processes.

A small retailer with one online store may have very different needs from a growing ecommerce company selling through several channels.

Business Central can support finance, inventory, purchasing, sales, warehousing, and reporting. It can also connect with ecommerce platforms and other applications where required.

For growing retailers, this can provide a way to bring more of the back-office operation into one system rather than adding another application every time the business expands.

The important question is not whether an ERP has the largest feature list.

It is whether it can support the areas of the business that are becoming harder to manage.

When Should You Integrate Ecommerce With an ERP?

Not every ecommerce business needs ERP integration from day one.

The need usually becomes clearer as order volumes increase, more sales channels are added, or staff start spending too much time moving data between systems.

For example, if employees are entering online orders into Business Central manually, checking stock in several systems, or preparing ecommerce data for finance in spreadsheets, the current setup may be reaching its limits.

The same applies when returns become difficult to track, or customers see stock as available when it has already been sold elsewhere.

Integration will not fix every process issue. But it can remove a lot of the manual work created by systems that do not share information.

How Dynamics Square UK Can Help

Ecommerce integration needs to fit the way the business already handles orders, stock, fulfilment, and finance.

Dynamics Square UK can help businesses assess their current ecommerce and finance systems, plan the data flow between them, configure Business Central, support data migration, and manage the integration after go-live.

This can include deciding which system should hold customer, product, inventory, order, and financial information and what data needs to move between them.

For a business using Shopify and Business Central, the work may start with reviewing the current order and inventory process before deciding how the connector should be configured.

That gives the integration a clear purpose and makes it easier to manage when the business changes later.

Final Thoughts

Ecommerce businesses can run with separate systems. The challenge usually appears when order volumes grow, more products are added, or sales start coming through several channels.

At that point, moving information by hand becomes harder to keep up with. Stock needs to stay accurate, finance needs reliable sales data, and customers need clear order information.

eCommerce ERP integration can connect these processes and reduce some of the manual work between systems.

The right setup depends on the ecommerce platform, ERP, order process, inventory model, and finance requirements.

If you're considering Business Central for your ecommerce operation, Dynamics Square UK can review your current systems, identify the integration requirements, and help plan the implementation. Connect with us Today! 

Some FAQs

1. What is ecommerce ERP integration?

Ecommerce ERP integration connects an online store with an ERP system so information such as orders, customers, inventory, and financial data can move between the two systems.

2. Why integrate an ecommerce platform with an ERP?

It can reduce manual data entry and give teams a more consistent view of orders, inventory, and financial information.

3. Can Shopify integrate with Business Central?

Yes. Business Central Online includes Microsoft's Shopify Connector. Depending on the configuration, it can synchronise products, inventory, customers, sales orders, fulfilments, transactions, and payouts.

4. What does an ecommerce ERP system manage?

An ecommerce ERP system can manage areas such as finance, inventory, purchasing, warehousing, sales, and reporting while connecting with the ecommerce platform used to take online orders.

5. Is Business Central suitable for ecommerce businesses?

Business Central can support ecommerce businesses that need finance, inventory, purchasing, warehousing, and other back-office processes in one ERP. It can also connect with ecommerce platforms such as Shopify.

6. How does ERP integration improve inventory management?

It allows inventory information to move between the ERP and ecommerce platform, helping reduce differences between the stock held in the ERP and the quantity shown online.

7. How does ecommerce integration help finance teams?

It can bring order, transaction, payment, refund, and payout information into the ERP, giving finance teams better information for reconciliation and reporting. Microsoft's Shopify Connector supports transaction and payout synchronisation for Shopify.

8. Does the Shopify Connector work with Business Central on-premises?

No. Microsoft's current documentation states that the built-in Shopify Connector is available for Business Central Online and is not available for on-premises deployments.

9. Can the Shopify Connector handle returns and refunds?

Yes. The current connector supports returns and refunds as part of Shopify order processing, although the exact behaviour depends on the configuration.