I have been experimenting with Recommendations on our site for a while now but looking to move into Rec's within email. The part I am struggling with is if there is a way to determine the parameter to base Rec's on from offline information.
Ex: I am marketing to a list of customers that have participated in events in Las Vegas, Denver, and Kansas City in the past and I want to send them a message with Recommended events based on their billing attribute instead of target calling up the device geo. How would I go about doing that?