I usually work Automation Studio and SQL Activities to build my recipients. But I have been tasked to learn how to build simple segments using Data Filters and Measures. And now I am already confused as the numbers that end up in my Groups do not make sense to me.
Using Data Filters and Measures that end up in a Group, I would like to get subscribers who opened in a specific send (say JobID=123). But the numbers don't match when I check with Tracking results.
So here is what I do:
In the above picture,
count_open_vinterlinjerna is the name of the measure I created.
Last step, I create a group to populate with this Filter. I choose the All Subscribers as the Data Source of this group.
I get some 16 contacts that end up in this group. But in reality, people who have opened in this job are over 4000. What am I doing wrong?
(I honestly don't understand the concept of Data Filter when we e.g. say the count of unique open for this job "is greater than zero". How can )