I wanted to join the thread to add to the several prior requests for married segment alerts.

I can see how this is a bit complicated. However, EF is already able to search for flights in a way that gets the correct married segment availability data. Once EF receives a response, EF servers could check whether the desired class is available, then send the alert if it is available. Logic & data flow seems viable to me.

Would sure be handy! Hope this is still on the list of features being considered.