To connect your Account(s), go to your Account Settings -> AppStore Accounts. There you will see the instructions on how to connect. Once your request has been processed, we will enable your free access to the Basic App Intelligence plan for 12 months.
The user you will need to invite is going to have this format: firstname.lastname@example.org
In order for us to have a view only role in your account, you will need to assign us the role "Finance" in your Google Play Developer Console, and the roles "Sales" and "Reports" in your iTunes Connect Account.