I have an application, which advertise it in many sites, and every site have it's own unique referral key which I gave them . when user open the application link in google play store and install the app , I want to know from which referral site user navigate to store and install my app. dose Google Play Store has any API for this? if no how can I handle it? I don't want to use google ads.
google have the sdk for doing this. Referrer Document