I followed the instructions for created a connection between S2 and Mail Chimp. I've got the API key and then all member levels are set to go to a particular list (set the list ID and then added the group and segment as shown in the example on in the MP integration panel on S2.
2db42aa6e8::New Gym Members::New Gym Members Segment
Tested it and it's just not doing anything.
I saw in another thread that somebody's trying to use another plug-in to deal with this but isn't it exactly what S2 is designed to do?
Any ideas as to what could have gone wrong?