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ERP Integration

Without a reliable ERP integration, you manage prices, inventory, and orders twice over — error-prone, time-delayed, and hostile to scale.

ERP Integration Without the Data Chaos

We integrate your Shopware shop with SAP, Microsoft Dynamics, Xentral, Sage, or other ERP systems so data syncs in real time and manual transfers become a thing of the past. Your shop always works with current data; your team gains time for tasks that actually create value.

The essentials of ERP Integration

  • We integrate your Shopware shop with SAP, Microsoft Dynamics, Xentral, Sage or other ERP systems so prices, inventory and orders sync in real time.
  • We make the ERP the master for prices, stock and order data, so the shop reads rather than maintaining in parallel and the double bookkeeping disappears.
  • Real-time or short-interval stock sync reduces cancellations, because customers no longer buy items already sold out in the ERP.
  • An asynchronous message queue decouples ERP and checkout: the checkout confirms immediately, the ERP is informed independently and can absorb a brief outage.
  • Robust error handling with retry logic, error queues and a maintained mapping documentation ensure no order silently disappears.
Request ERP Integration

Inventory and prices in the shop diverge from the ERP because manual transfers are time-delayed or contain errors.

New orders must be manually or batch-exported to the ERP — time-consuming and error-prone at high order volumes.

An ERP outage has previously blocked the checkout or caused data loss with orders.

Bidirectional Sync

Prices and inventory flow from ERP to shop; orders flow from shop to ERP. We implement this bidirectional synchronisation with real-time or event-based updates so customers always see current availability and your ERP is informed immediately about new orders. No more time-delayed batch imports.

Field Mapping & Transformation

ERP data structures and shop data structures rarely align. We create a complete field mapping, implement data transformation logic, and handle edge cases like product variants, price groups, and multi-warehouse inventory consolidation. The mapping document is transparent and makes every decision traceable.

Error Handling & Monitoring

In a bidirectional integration, conflicts and errors will eventually arise — a stale inventory in the ERP, an order that couldn't be transferred. We implement robust error handling with retry logic, error queues, and alerting so no order ever silently disappears and you always have visibility into sync status.

Performant Architecture

ERP integrations must be performant without blocking the shop checkout. We use asynchronous processing and message queues so ERP communication runs in the background — a temporarily unavailable ERP does not interrupt the order process. Messages are stored persistently and processed upon restoration.

ERP integration process

A solid ERP integration follows a fixed sequence — from clarifying data ownership to ongoing operations. Each phase builds on the one before it.

  1. Analysis & data ownership

    Define which system is master for which data — ERP owns prices, inventory, and orders; the shop reads rather than maintaining data in parallel.

  2. Field mapping & transformation

    Every relevant field is mapped with full documentation: source, target, transformation rule. No undocumented decisions.

  3. Architecture design

    Choose between real-time webhooks, short-interval polling, or an async message queue — based on volume, latency requirements, and ERP stability.

  4. Implementation & testing

    Build bidirectional sync, add error handling, and run edge cases (outage, timeout, duplicates) against test data.

  5. Monitoring & operations

    Alerting on failed sync jobs, latency spikes, and queue backpressure — so any divergence between shop and ERP becomes visible immediately.

Skipping a phase increases the risk of data divergence or unplanned outages.

What makes ERP integration succeed

These four principles determine whether an ERP integration stays stable or creates long-term problems. Their relative importance differs.

  • Data ownership (master system)ERP is the source of truth for prices & inventory; shop only reads
  • Decoupling via message queueCheckout must never wait on the ERP
  • Real-time inventory syncDelays directly cause cancellations and lost customer trust
  • Mapping documentationUndocumented decisions turn debugging into guesswork

Relative weighting

Values show relative priority in integration design — not measured outcomes.

What matters for ERP Integration

A good ERP integration first settles which system holds the truth for what. The ERP is usually the master for prices, stock and order data, and the shop reads rather than maintaining in parallel. Fail to define that ownership clearly and you build divergence in from the start, which is exactly the double bookkeeping you wanted to be rid of.

Real-time or tightly clocked stock sync is not a luxury but protection against cancellations. Delayed stock leads to customers buying items that sold out in the ERP long ago, and every such cancellation costs trust. The closer the sync runs to real time, the rarer that uncomfortable gap between order and reality becomes.

The checkout must never wait on the ERP. If ERP communication runs synchronously in the order process, the ERP dictates checkout load time and takes the whole purchase down when it fails. An asynchronous message queue decouples both systems: the checkout confirms immediately, the ERP is informed independently and can even absorb a brief outage.

Documentation is the part sloppy integrations leave out and pay dearly for. Undocumented mapping decisions are one of the most common causes of later integration problems, because once nobody remembers why a field was mapped a certain way, every debugging session becomes a search in the fog. A maintained mapping documentation therefore belongs to the mandatory part, not the optional extras. For us as a Shopware agency, it is a fixed part of every integration.

Real-time inventory reduces cancellations

When inventory data is synchronised with a delay, customers can order items already sold out in the ERP. Real-time or short-interval synchronisation reduces the cancellation rate and protects the customer experience.

Async queue decouples ERP and checkout

When ERP communication happens synchronously in the checkout process, the ERP determines checkout load time. Asynchronous message queue architecture decouples both systems — the checkout confirms immediately; the ERP is informed independently.

Field mapping must be documented

Undocumented mapping decisions are a frequent cause of later integration problems. When nobody knows why a field was mapped a certain way, debugging becomes expensive. A maintained mapping document is a mandatory part of any serious ERP integration.

Shop and ERP in lockstep

With us you're always at the cutting edge of technology and benefit directly from our developer expertise. Together we analyze your shop, identify key areas and develop tailor-made solutions. Your goals and expectations are at the center of our work.

  1. Developers, not resellers

    Your shop is built by developers who really understand the code. We pass nothing to subcontractors.

  2. Shopware down to the detail

    Architecture, API integration and performance from hundreds of project hours.

  3. One team, every discipline

    Development, design and marketing come from one team that works without friction at the handoffs.

  4. Built for growth

    We build measurably for conversion, load time and revenue.

  5. Partner, not vendor

    We stay on after launch and keep developing your shop continuously.

Ready for your successful online shop?

Profile picture of Paul Kalisch, Executive Partner
Paul Kalisch
Executive Partner

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Frequently asked questions

Which ERP systems do you integrate?
We integrate common ERP systems including SAP (ECC and S/4HANA), Microsoft Dynamics 365, Xentral, Sage, Lexware, and custom ERP systems with their own API. For systems without direct API support, we work with file-based interfaces or middleware solutions.
Does synchronisation run in real time or as a batch?
That depends on the requirements and the capabilities of the ERP system. Inventory and price changes can be transferred in real time via webhook when the ERP supports it. For ERP systems without event support, we implement short-interval batch synchronisation with configurable intervals.
What happens if the ERP is temporarily unavailable?
New orders are stored in a persistent queue and automatically transferred once the ERP is available again. The shop checkout continues uninterrupted in the meantime. You receive an alert when the connection is interrupted and again when it is restored.