How to trigger IAM right after the user clicks the push

Siva​, I'm not sure if you have any limitations that are preventing you from being able to combine both messages into a single canvas, but what I've done to accomplish what you're trying to do is have the messages in a single canvas. Depending on how your app is set up to send IAMs you'll have 2 options on setup.

Option 1: A very basic version of this canvas would have the push notification that feeds directly to an action path. The action path would have a path that users go down when they directly open the push notification with an evaluation period of maybe a day (most users won't have a push on their screen for longer than that), if they open the push they'll go down to the IAM which would be triggered immediately upon them opening the app.

Option 2: You would have the Push Notification send, then immediately send users to the IAM step, which would send the IAM when the user opens the app, this does get around users that did not interact directly with the push. They may have received it, swiped it away, but then opened the app for something else. It would still only go to users who were eligible for the push, but may not be a true metric of push engagement.

So I would think that if the IAM is directly related to the push notification and that you'd only want users who clicked the push to get it then Option 1 would be the better route to go. 

If you need to have the 2 messages split into different campaigns, you could have an action-based entry criteria for the IAM campaign that requires entrants to have directly interacted with the push notification campaign. Unfortunately there's no direct method of checking if a user interacted with a canvas step as entry for another canvas so the messages would HAVE to be campaigns if they need to be split.

Hopefully this helps.

I did trying attaching images, but the platform was throwing errors unfortunately.