I saw this but its about facebook auth. But that is not needed.
I think that
What they want is to measure app installs through facebook campaigns - so measure install events through facebook SDK so they can analyze success rate of different marketing facebook camaigns
CHAT GPT told me this:
Setting up Facebook SDK in B4X (for both Android and iOS)
1. 
Add the Facebook SDK to your B4A and B4i Projects
For 
B4A (Android) and 
B4i (iOS), you'll need to use 
B4X libraries that integrate the Facebook SDK.
For B4A (Android):
- Add Facebook SDK to B4A:
- Download the Facebook SDK for Android (if not already available in your B4A environment).
- Use Facebook SDK libraries available for B4A or you can manually add Facebook SDK .jar files to the Libraries folder.
 
- Add Facebook Initialization:
- Initialize the Facebook SDK in the Main Activity:
- b4a
 
	
	
	
	
		'Add Facebook SDK to your project using the libraries
Dim fb As Facebook
fb.Initialize
 
 
		
	 
 
 
- Track Events (App Install):
- In B4A, track the app installation using Facebook's AppEvents API:
- b4a
 
	
	
	
	
		fb.AppEventsLogger_logEvent("app_install_event")
 
 
		
	 
 
 
For B4i (iOS):
- Add Facebook SDK to B4i:
- In B4i, add Facebook SDK as an external library via CocoaPods or manually. Facebook has an official CocoaPod for iOS SDK integration.
- For B4i, use B4iBridge and CocoaPods integration to pull the Facebook SDK.
 
- Add Initialization in AppDelegate(via B4i):
- For iOS, Facebook SDK should be initialized in the app’s delegate:
- b4i
 
	
	
	
	
		#If iOS
Dim fb As Facebook
fb.Initialize
#End If
 
 
		
	 
 
 
- Track Events (App Install):
- Use the Facebook API to log events:
- b4i
 
	
	
	
	
		fb.AppEventsLogger_logEvent("app_install_event")
 
 
		
	 
 
 
Is he correct right does he miss anything ?