JTL-Wawi integration: connecting JTL-Wawi

JTL-Wawi can be connected in three ways: through the Wawi API with REST and GraphQL, through the JTL-Connector for common shop systems, and through file imports with JTL-Ameise. The Wawi API is available locally and through JTL Cloud. A custom integration pays off when your target system has no ready-made connector or the standard sync is not enough.

What JTL-Wawi is and who uses it

JTL-Wawi is the inventory management system (Warenwirtschaft) from JTL-Software. Merchants manage products, stock, orders, deliveries and invoices in it. It is set up through a desktop client. It is typically used as the hub between shop, marketplaces, shipping and accounting.

Which interfaces JTL-Wawi offers

For planning, the place of operation matters most. The on-premises variant runs where the Wawi runs. A service on the internet can reach it only through the cloud variant or through your own secured route into the company network. The overview page does not describe webhooks for the Wawi API. We therefore plan with short polling intervals until an event path is documented.

Typical connections and data objects

1. Order is taken over from the shop, status is reported back every 15 minutes
2. Stock is reported to the shop and marketplaces every 15 minutes
3. Items and prices go to the shop hourly
4. Invoice and credit note are handed over as postings daily
5. Delivery with tracking number is reported to the shop on dispatch

Common connections are Shopware with JTL-Wawi and JTL-Wawi with DATEV. The intervals are examples and are set for each project.

Where standard connectors reach their limits

• Systems without a connector

  For shops, industry software or accounting systems without a ready-made connector, only the Wawi API or the file route remains.

• Custom fields

  Additional fields, custom product attributes or special pricing logic are often not transferred completely by standard connectors.

• Availability

  If the Wawi sits in the office, the connection has to restart cleanly after reboots and network outages.

• File imports

  Imports through Ameise are practical, but without checks and a log, faulty rows are noticed late.

How we connect JTL-Wawi

First we check whether a JTL-Connector covers your case. If not, we build the connection on the Wawi API: in the cloud variant if the Wawi is connected to JTL Cloud, otherwise with a small service inside the company network. The app requests only the permissions it needs. Every run is logged, errors are retried and reported. Where no API fits, we use the file route with validation, see integration without an API.

Updated: 10/20/2026