How can I know from which Google account (Email id) user purchased a product in my app?

Question

Suppose a user has 3 accounts and one of them is in the app purchase account.
Then when this user purchases a product from my app, how can I know from which account the in app purchase happened?
Can I get the email id?

Answer 1

No this is impossible. Google does not give this information. You can know from where is user, user device model, or something like this, but not who is user!