Attribute "Condition_Name": used to indicate the product state (new, moderate etc...). If the Condition of the product is not NEW, then the Description attribute becomes mandatory as bol.com needs a precise state description of the product.
The Internal Referencefield must contain unique values among your products (maximum 30 characters).You can use the EAN code of the product or your own product ID. This value will not be visible on the Bol.com website.
In the "Stock – Managed By Retailer" and "On Hold By Retailer" field, bol.com recommend selecting "FALSE" in order to avoid out-of-stock orders, in case only one item remains and two orders are placed simultaneously.