How to Get Internal App Links
How to get in-app links?
This functionality allows you to create links to a page in your app from another page.
Just add a Source code feature to your app and click on source button.

Now click on arrow button.

Now select your feature for which you want to get in-app link.

Now click on source button.

Here is your html in-app link code.

For this example in-app link is: