In order to improve the accuracy of order data on Kaufland.de, Lengow is making the "id_offer" attribute mandatory for all products from Monday, 17 November 2025.
What is changing
Until now, Lengow has relied on the EAN code to match product and order data. However, the same EAN code could be used for multiple versions of a product (for example, a new and a used item), which can lead to incorrect order data.
To ensure each product and order line is correctly identified, Lengow now requires a unique "id_offer" value for every product.
What you have to do in Lengow
Before Monday, 17 November 2025, check your Kaufland.de channel in Lengow and make sure the "id_offer" attribute is filled in for all products:
Â
Ensure the "id_offer" value is unique across your entire product feed.
If multiple products share the same "id_offer", only one will be accepted - the others will be rejected and not sent to Kaufland.