Please refer these official articles from appsflyer for detailed explanation about In-App-Events:-
You need to take of some settings in Appsflyer to make sure the configuration is correct - please compare the attached picture for reference. Under "Integrated Partners" you need to locate CPIDroid, open the window, go to the second tab "in App Events", and select "Only CPI Droid attributed installs' in-app events...".
Additionally, you will need to select the in-app event you would like to use for the campaign in the bottom part of the window, copy the event name in to the "CPI Droid Event Tag" field, select "Send Value" and hit "Save & Close".
- Please log in to your Appsflyer dashboard, select your app, and go to "Integrated Partners" in the navigation on the left. Search for CPIdroid and open the pop-up window. Next, go to the tab "In App Events":
- In the drop-down menu under "Send In-App events to CPIDroid" please select "Only CPIdroid attributed installs' in-app events..."
- Under "In App Event Mappings", please select the appropriate in-app event you would like us to track in the drop-down menu and tick the mark for "Send Value".
- Press "Save & Close"