JTL-Wawi Shop Integration Without Data Silos
We bidirectionally connect your JTL inventory system with your online shop: products, stock, orders, customers and delivery status flow automatically between both systems. No more manual CSV reconciliation, outdated inventory displays or duplicate data maintenance.
since 2013
integration experience
50+
Integration projects
6
Core data flows
< 5 min
Sync latency possible
Fixed price · net plus VAT
- Fixed package price instead of an open estimate
- All six core data flows between JTL-Wawi and your shop
- Bidirectional synchronization with retry queue
- Monitoring of your interface well beyond go-live
Scope and product count determine the fixed price, which is confirmed after a free system analysis. Complementary modules shown separately: DATEV integration from 1,490 €, marketplace integration from 2,480 € per channel. Extensions and operations on a time basis: 990 € per project day or 119 € per hour net. Ongoing connector licenses are disclosed transparently and separately. The project day is a package price for a reserved working day and therefore deliberately not a multiple of the hourly rate — the rationale is on the pricing overview.
JTL-Wawi is one of the most widely used inventory management solutions for German mid-market e-commerce businesses. The powerful desktop software reliably manages products, warehouses, purchasing, sales and customers. However, the connection to the online shop poses challenges for many operators: outdated stock figures, manual order transfers and a cumbersome CSV file import. As a specialized integration agency, we develop custom JTL integrations that automate all relevant data flows and unite your system landscape into one seamless whole.
JTL-Wawi Shop Integration: Data Flow Balance
What is the JTL-Wawi integration and who benefits from it?
A professional JTL-Wawi integration is more than an occasional data export. It is a permanent, automated synchronization layer between your inventory management system and the online shop. Incoming shop orders are automatically created as sales orders in JTL, stock levels are updated immediately after every goods issue, and shipping notifications with tracking numbers flow back to the shop and on to the customer. The benefit is immediately tangible: your warehouse staff always see the current stock level, your shop displays correct availability, and customers automatically receive shipping information. Especially for merchants with multiple sales channels, marketplace integrations and growing order volumes, a reliable JTL shop interface is a decisive competitive advantage.
The six core data flows of the JTL shop integration
Product master data
Item numbers, names, descriptions, images, categories, variants and technical attributes are transferred from JTL-Wawi to the shop. Changes in the inventory management system appear in the shop automatically after the next sync.
Real-time stock levels
Available quantities, reserved stock and minimum quantities are synchronized at defined intervals or via webhook. This means your shop always displays currently deliverable quantities and prevents overselling.
Order import into JTL
Incoming shop orders are automatically created as sales orders in JTL-Wawi. All relevant data flows with them: line items, quantities, prices, discounts, payment method and delivery address. No manual re-entry, no data loss.
Customer master sync
New customer registrations in the shop automatically create debtor accounts in JTL. Existing customers are reconciled: address changes, company data and customer numbers remain consistent across both systems.
Delivery status and tracking
As soon as an order is dispatched in JTL, the interface transfers shipping information and tracking number back to the shop. The customer automatically receives a shipping notification with a link to parcel tracking.
Prices and special prices
Standard prices, customer price groups and time-limited promotional prices from JTL are synchronized to the shop. Volume pricing for B2B customers and individual conditions are correctly transferred to the shop's pricing logic.
Orders in, stock out — fully automatic
The most important data flow runs in both directions. An order placed in the shop is created as a sales order in JTL-Wawi without manual re-entry — including line items, quantities, prices, payment method and delivery address. As soon as the goods issue is booked in JTL, a webhook reports the new stock level back to the shop before the next customer sees outdated availability. Between the two systems, a message queue buffers every message: if JTL-Wawi is briefly unavailable for an update, no orders are lost — they are delivered after recovery.
- No typing of orders, no transposed digits
- Shop stock follows the goods issue within seconds
- Retry queue secures every message against system outages
JTL-Wawi REST API: The technical foundation of the integration
JTL-Wawi has offered a complete REST API since version 1.6, through which all relevant data objects can be read and written. Products, stock levels, orders, customers and documents can be queried and updated via standardized HTTP endpoints. JTL also supports webhook notifications that enable event-driven integration: instead of polling the API at fixed intervals, JTL reports a change immediately when it occurs. In our middleware architecture, we process incoming webhooks in message queues that ensure decoupled, fault-tolerant synchronization. For older JTL versions or on-premises environments without an active REST API, we alternatively use the JTL database directly or fall back to the SOAP interfaces of the JTL connector.
JTL version and API scope
Scope: what the interface delivers and what it does not
Realistic expectations about the JTL shop interface are essential for project success. The integration synchronizes data between two systems — but it does not replace the functional configuration of the systems themselves. Pricing rules, customer groups, categories and shipping options must be consistently configured in both JTL and the shop before the interface is set up. The following scope definition gives you clear orientation.
- In scope: Automated transfer of products, stock, orders, customers, prices, delivery status and tracking numbers
- In scope: Error handling, retry logic, dead-letter queue for failed transfers
- In scope: Monitoring and alerting on synchronization errors
- In scope: Mapping of variants, bundles and configurable products in the integration layer
- Out of scope: Creation or modification of pricing rules and customer groups in JTL or the shop
- Out of scope: Tax accounting and invoicing (separate module, e.g. DATEV integration)
- Out of scope: Logistics provider connectivity (implemented via dedicated carrier interfaces)
Our project workflow for JTL integrations
Inventory and requirements analysis
We analyze your JTL-Wawi version, existing connectors, data volumes and current processes. Together we define which data flows are prioritized and which synchronization intervals make sense for your order volume. Result: a binding integration specification with data flow diagram and mapping matrix.
Technical proof of concept
Before full implementation, we create a proof of concept for the most critical flows: stock synchronization and order import. You see on a staging environment how the data flows before we begin full implementation.
Implementation in sprints
Implementation proceeds in prioritized sprints: first master data and stock, then order import and customer sync, finally delivery status and tracking. After each sprint you test the results on the staging environment with real JTL data.
Integration and load testing
Before go-live, we conduct end-to-end tests with realistic data volumes. Load tests simulate peak times: mass import of product changes, simultaneous incoming orders and stock updates. Error scenarios such as connection drops and duplicate messages are tested systematically.
Go-live and hypercare
At go-live we support you closely and monitor all synchronization processes in real time. During a two-week hypercare phase we are immediately available for corrections and fine-tuning. We only hand over to regular operations after stable metrics are confirmed.
Regular operations and evolution
After go-live, our monitoring systems take over surveillance. We proactively notify you of anomalies. JTL updates and shop updates are checked for interface compatibility before deployment. Additional data flows can be added in live operations.
JTL-Wawi and Shopware CE: the most common combination
In our JTL projects, Shopware Community Edition is the most frequent shop platform. The open Shopware API and plugin system allow deep integration without vendor lock-in. We develop project-specific Shopware plugins that build on our middleware layer and convert JTL data into the Shopware data structure. We respect the specifics of the Shopware product model: products, variants, properties, media, categories and pricing rules are correctly mapped. Even complex product catalogs with hundreds of variants per product are synchronized reliably.
For other shop systems such as WordPress with a webshop plugin, TYPO3, Drupal or a custom shop implementation, we also develop JTL integrations. The middleware architecture stays identical; only the shop connector is adapted. This protects your investment even during a future shop migration: only the connector needs to be replaced, not the entire integration architecture. Details about our API development approach are on the dedicated service page.
Correctly synchronizing variant-rich products and bundles
One of the most common technical challenges in JTL shop integrations is the correct synchronization of variant-rich products. JTL-Wawi distinguishes between simple items, variant items with characteristics (e.g. color and size) and bill-of-materials items (bundles). Shopware and other shop systems have their own concepts for variants and configurable products that do not always map 1:1 to JTL.
We analyze your product assortment before implementation and define a robust mapping between the JTL product model and the shop product model. Bill-of-materials items can appear in the shop either as standalone products or as virtual bundles. For variant items, we define which properties are presented as shop options (e.g. selection field) and which are managed as separate products. This mapping is documented and forms the basis for all future product additions.
Multi-channel retail: JTL as the central stock source
Many of our customers sell not only through their own shop but also through external marketplaces. In these scenarios, JTL-Wawi is the authoritative source for stock and orders. All orders from all channels converge in JTL, and stock is managed across channels. Our integration architecture accommodates this multi-channel approach: the own shop receives stock information from JTL, orders are created with the correct channel identifier, and shipping information flows back to the respective originating channel. If you are also planning marketplace integrations, these can be added as additional connectors to the same middleware architecture.
Stock buffers in multi-channel retail
Reliable operations: fault tolerance and monitoring
Real-time monitoring
Dashboards display the status of all synchronization processes: records transferred, error rates, latency and queue length. Anomalies are detected before they affect business operations.
Automatic retry logic
Temporary connection errors, timeouts or brief JTL maintenance windows do not permanently interrupt synchronization. Failed messages are buffered in a dead-letter queue and reprocessed once the cause is resolved.
GDPR-compliant data transfer
Customer data is transferred encrypted and held in the integration layer only as long as required for synchronization. Procedural documentation transparently describes all data flows and retention periods.
JTL integration as part of a larger system landscape
In growing e-commerce companies, JTL-Wawi is often not the only system that needs to be connected to the shop. Financial accounting, logistics providers, PIM systems and external marketplaces require additional data flows. Our middleware architecture is designed to manage JTL as one of several sources and targets in a central data hub. The JTL integration remains modular: new systems can be added without affecting existing flows. If you are planning a more comprehensive ERP inventory integration or a switch to a full enterprise system, our middleware architecture provides the right starting point.
For companies that also require a tax integration, we extend the JTL shop interface with a DATEV integration. Invoices generated by JTL then flow automatically with correct account assignments into your financial accounting. Our API developers handle the complete technical implementation from a single source. Get in touch if you are planning a comprehensive integration solution.
What a JTL-Wawi integration costs
An open effort range hardly helps you get a budget approved. That is why we quote a clear fixed price for the JTL shop integration. The final price depends on the scope of data flows, the number of product variants and the complexity of your pricing structure, and is confirmed after a free system analysis — with no hidden items. Complementary modules such as a DATEV integration or marketplace channels are disclosed separately.
Fixed prices around your JTL integration
All prices net plus VAT. Every connection starts with a free system analysis and a binding fixed price. Scope, product count and data flows determine the right path.
JTL shop integration
The complete synchronization between JTL-Wawi and your shop.
- All six core data flows (products, stock, orders, customers, prices, shipping)
- Bidirectional data flow via the JTL-Wawi REST API
- Message queue with automatic retry and dead-letter queue
- Mapping of variant-rich products and bundles
- Setup, staging test and go-live support included
Connect accounting
DATEV integration as an addition to the JTL shop interface.
- Automatic document and invoice export to DATEV
- Revenue account mapping and payment reconciliation
- GoBD-compliant document chain
- Handover to your tax advisor without rework
- Third-party license disclosed transparently and separately
Connect marketplaces
JTL-Wawi as the central stock source for further sales channels.
- Connection per channel: Amazon, eBay, OTTO or Kaufland
- Cross-channel stock reconciliation with buffer logic
- Order return with the correct channel identifier in JTL
- Attribute and category mapping per marketplace
- Volume price for every additional channel
Extensions and ongoing operations on a time basis: 990 € per project day or 119 € per hour net. Connector and middleware licenses are disclosed transparently and separately from the fixed price. You receive a binding offer after the free system analysis.
Unsure which scope fits your JTL installation?
In the free system analysis we review your JTL-Wawi version, your assortment and your critical data flows — and give you a concrete fixed price before development starts.
Frequently asked questions about JTL-Wawi integration
More background on the blog: Connecting JTL-Wawi to Your Online Shop describes sync planning step by step, Inventory Synchronization Across Multiple Warehouses covers multi-warehouse stock, and Data Mapping Between ERP and Store clarifies field assignment before the first import.
Connecting JTL-Wawi to the shop: three variants
The choice depends on how many channels are involved and how individual your pricing and shipping logic is.
Manual maintenance in both systems
- No project effort, workable for very small assortments
- Full control over every single change
- Duplicate data maintenance permanently ties up working time
- Shop stock lags behind goods movements
- Errors in prices and variants only surface during sales
Standard sync with built-in tools
- Covers articles, stock and orders in the standard scope
- Short setup time without a development project
- Individual pricing or shipping rules can hardly be mapped
- Special cases move back into manual rework
- Error cases are hard to trace
Tailored connection after analysis
- Variants, bills of materials and price rules are mapped deliberately
- Stock moves into the shop separately per warehouse
- Failed transfers are logged and retried
- Setup fixed price from 4,900 € net after a free system analysis
- Requires a structured upfront survey of the business rules