Use Case
I need to make sure that I send a specific email only once to a subscriber via Journey Builder.
The Problem
The email is used in different journeys and I dont know where the subscriber will end up first.
Approach
I know that I can make an insert into a data extension at send time within the email and add that data extension in an attribute group to the contact model. However, I was thinking about send log DEs and stumbled upon another Template called "Event DE Template". I cannot find any documentation on that. So I have no idea if that could be appropriate to use.
What would you consider doing? Is there something I did not think of?
Regards, Christian