Hi @Saloni_Gakhar,
We collect our UTM and ITM campaigns in our apps directly. At this time, since we haven't got any context variables on our Lifecycle metrics, we actually track them on the page where the URL points to.
Now, in my case, we track the "URL" of our app pages. So just like on the web, the tracked URL will contain the parameters when they exist. But, on top on this, I worked with our app developers to extract and pass me each parameter as a context variable (but I also track a visit level eVar for each UTM on top of the Tracking Code (s.campaign / eVar0).
So now my Tracking Code and Custom eVars all work, and most Marketing Channels also work.. I say "most" since there are challenges here... one, I had to create a special rule for paid search, since apps don't track referrers, and thus my paid/natural search rules don't trigger (so I had to make a rule looking for the paid campaigns regardless of coming from a known search engine)... and anything Organic also doesn't get covered (again due to lack of referrer data).
And since I mentioned it above, I also have a custom tracking for our internal campaigns, to try and replicate what we have in our website as close to one-to-one as possible.
