not sure how well it would work with a single multi-valued attribute, but if you’re dealing with separate attributes, see the logic i used here as a starting point: Transform - Find Users' Last Activity Date (find latest date in array)
not sure how well it would work with a single multi-valued attribute, but if you’re dealing with separate attributes, see the logic i used here as a starting point: Transform - Find Users' Last Activity Date (find latest date in array)