I am using Appsflyer to improve my App(Android/iOS)'s marketing campaign. But at the same time, I need to use Firebase analytics to in-app analysis while Appsflyer is not a solution for in-app analytics.
The problem is get advertising(attribute) data from Firebase analytics. I need to use Onelink(from Appsflyer with Appsflyer parameters) so I cannot know from which source people came in Firebase analytics when People Installed from Onelink link. I also found it's impossible to fully integrate Firebase analytics with Appsflyer even with Google Tag Manager(I even asked to Appsflyer manager who work with my company).
Does anyone went through this kind of situation? Please help.