If the declaration date category is event-based, you have to specify the business event. It makes sense to mention the business event in the description of the declaration date category.
If you use declaration date categories that are event-based and customer-specific, you have to specify the business event and a class. It makes sense to mention the business event and the fact that the category is customer-specific, in the description of the declaration date category.
For more information about all the Customizing activities for the logistical option, see Customizing LOPT.