First of all, I'm wondering if it's possible to *not* have first and last name fields? My client doesn't want to gather this information from people -- it's a site where people may want to and can remain anonymous. If I leave those fields blank, will it still work?
I'm wondering because right now it's *not* working. Actually, I've now tried adding first and last name fields/IDs and the subscriber is still not being added.
One thing I do notice is that the MailPoet field in the Form Editor doesn't have "MailPoet" in the label -- in the screenshots yours says "MailPoet Field ID 2." Should it?
WP Version 3.9.2
Gravity Forms 1.8.11
MailPoet GF Add-on 2.0.4