One of the biggest car dealers in Europe needed to create control groups and sub-control groups as a percentage of the same audience, and assign dynamic values per each group in order to do testing. This is challenging as it takes a significant amount of time to create many control and sub-control groups with a query; and even more time to create personalized (dynamic) values per each control group. What’s worse, after all that query writing this marketing team's only option before running these queries in Marketing Cloud was to simply pray they didn't receive any errors.
Continue reading below to find out how they solved this using DESelect.