Thank you for your reply... through your function we can't do it, as the former Categories were product families, to which items are assigned, now we have put all product families in one family and therefore can regroup in subgroups which are important for us to have and to measure... we can't do them by hand either, as we have 160000 lines to change... so it would be helpful, if there is a way, where we could produce you a file with the category assigned to each item number, (excel, CSV, etc file) and you could then have a copy of our data, export it, make the changes in excel, etc, and the reimport it... is that possible?
Thnak you
Andreas