I need to compare marketable subscribers of specific email newsletters by year, specifically end of 2019 vs 2020. How is this set up? Nothing seems to be working for me. Thanks.
Depends entirely on how you maintain subscription preferences. How does somebody get flagged as a subscriber to Newsletter A vs. Newsletter B?
There's not an easy way to get this data. We have a field for "Blog Subscriber Date" that gets stamped every time someone subscribes to the blog and can report on this.
However if they become a member of a Program when they subscribe then you should be able to report on Program Member date