When importing the 'Assortment Product Lines' entity without filling in the 'LINENUMBER' field, the import outcome consistently results in an error. This hinders different users from working simultaneously on the same assortment locally. The idea is to simply disregard this field so that assortment updates can be performed by adding product lines without taking into account the line number in the local file, while still respecting the products that are already included in the assortment in the system.

Currently, in order to update assortment product lines, it is required to always view the last line in the assortment beforehand to insert the subsequent one into the local file. This practice impedes different users from working locally on the same assortment and slows down the assortment update process.