Connecting your online shop to an ERP: Methods, data flows, and timelines

What does an ERP connection to an online shop actually mean? 

An ERP connection links your online shop system with your ERP through an interface, usually an API or a pre-built connector. Xentral takes on all the operational data: orders, items, inventory, customer data, and documents. The sync runs in the background, and you work out of one interface.

In e-commerce, this integration is the central lever for scalable processes. Without a connection, you maintain inventory twice, export orders manually, and reconcile payments by hand. With Xentral, the whole flow from order to booking runs automatically.

German e-commerce hit €97.5 billion in revenue in 2025, according to the BEVH 2025 study, with €83.1 billion of that in physical goods. With every additional order, the manual effort per order grows too, unless it's automated. Xentral consolidates that order flood into one system.

What methods exist for connecting an online shop? 

There are three common ways to hook an online shop to an ERP like Xentral. Each method has a typical use case.

1. Native integration (connector): Pre-built connections from the ERP vendor. Quick to deploy and low maintenance. Xentral ships over 200 native connectors for shop systems, marketplaces, shipping providers, and payment services.

2. iPaaS (Integration Platform as a Service): Cloud-based middleware that orchestrates data between systems. Useful when you have a lot of heterogeneous tools. Xentral Connect is Xentral's low-code middleware (a workflow toolkit without coding).

3. Custom integration: Developers build the interface themselves via the ERP's API. Maximum flexibility at higher effort. Xentral offers 250+ API-based integrations and webhooks for real-time events.

Which method fits depends on your channels, volume, and IT resources. What we see at Xentral in practice: most mid-market retailers start with connectors and layer in specific custom APIs where it makes sense.

What data flows between the online shop and the ERP? 

A live ERP connection with Xentral covers four data flows. Each flow has a clear direction and a defined trigger.

• Items and inventory: Product master data goes from the ERP into the shop. Inventory flows back in real time. Xentral only syncs the differences, which keeps the load on shop and network low.

• Orders: Orders come from the shop into an inbox in Xentral. You review them with a click through central order management. The system color-codes returning customers and cleanly creates new addresses.

• Payments: Payment status from PayPal, Stripe, or Klarna gets automatically matched to orders. Xentral closes the gap between shop, bank, and accounting.

• Shipping and documents: Delivery notes, invoices, and tracking numbers get generated and pushed back to the shop and the customer. The buyer stays informed without anyone in Xentral having to export manually.

Real-time inventory management is the core mechanism that prevents overselling. Xentral writes every inventory movement back to connected shops and marketplaces immediately.

What benefits does an ERP connection deliver? 

An ERP connection with Xentral pays off measurably, as long as the data paths are cleanly defined. Four core effects:

• A central data foundation: Every department works off the same numbers. Inventory, prices, and customer data live in Xentral as a single source of truth.
• Automated workflows: Manual steps between shop, shipping, and accounting go away. In Xentral, triggers kick off downstream processes like the pick list or the invoicing run.
• Fewer errors: Retyped addresses, wrong prices, and inventory discrepancies disappear. Xentral validates every transferred field on each sync.
• Faster scaling: New channels can be plugged in without growing the back office. According to BEVH (2025), marketplaces already handle 56 percent of German online retail, which makes Xentral particularly valuable as a channel aggregator.

A 2026 Gartner prediction expects cloud ERPs with embedded AI to accelerate the financial close by 30 percent by 2028. With Xentral, you build the structured data foundation that lets AI features like that actually deliver.

What are the typical challenges of the connection? 

Connecting an online shop to an ERP rarely fails on the tech side. It usually fails on preparation. On Xentral projects, we see three recurring stumbling blocks.

1. Data quality: Duplicates, old addresses, and missing SKUs (Stock Keeping Units, i.e. item numbers) in the shop block clean handoffs. Xentral recommends cleaning up product and customer data before go-live.

2. Process clarity: Who decides in conflicts? What happens with partial cancellations or returns? These rules need to be defined before the connection goes live, otherwise maintenance islands form around Xentral.

3. Change management: Team members from shipping, service, and accounting are suddenly working out of one system. Xentral supports the switch with onboarding, a sandbox environment, and training so the new setup lands well with the team.

Data quality is the biggest risk factor in ERP projects, industry-wide. Xentral addresses this with a step-by-step implementation, dedicated onboarding phases, and a sandbox where you test processes before they go live.

How does the connection work with Xentral specifically? 

At Xentral, every shop connection follows a clear four-stage model. You don't need your own IT department for it.

1. Activate the connector: You pick the right shop or marketplace connector in Xentral and enter your access credentials. Standard connectors are ready for Shopify, WooCommerce, Shopware, JTL, Amazon, and eBay.

2. Define the data mapping: You decide which fields get translated between shop and Xentral, from item number to tax rate to payment status. That happens in the UI, without coding.

3. Sandbox test: Before go-live, you run test orders through Xentral's sandbox environment. That way you see the data and process flow before real customers are in the picture.

4. Go-live and monitoring: Xentral syncs automatically from the cutover date. In the dashboard, you check sync status, error messages, and open orders.

The connection is typically live in weeks, not months. That's down to Xentral's cloud-native architecture and the continuously maintained standard connectors.