I would love this to be tracked under the "Activity" Section of the trip so I can see when a client viewed the itinerary/how often and if they clicked on any of the links in the itinerary to understand engagement.

OK, if we get this notification ability, please make it optional to send push notifications. If you have a lot of trips pending that could be a lot notification emails. I like the fact that a client's engagement (opening itinerary) gets recorded somewhere in the client activity.

I would also love to have this feature! It would be great if we could also see some notification like - client last viewed this itinerary X minutes/hours ago - on our agent portal to keep track of their activity within their Tern itinerary.