I'm trying to build a segment, that includes visitors that has had an instance of an event 1 month prior to the present. I want to use the segment in target for re-targeting among other things. I other words, I want to build a rolling segment.
The best way I've been able to come up with, is setting events for this particular purpose, that have an expiration of 1 month (in this case), but this wouldn't give us the flexibility we require and it would also require re-tagging. Can anyone tell me how to do this?