Many times developer make a mistake while managing card, pc & internet so that possible to face serious problem like suspend the account.
There are many console accounts and lots of monetization accounts, in that case, a developer may be confused about which device, internet, or card is used and which is remaining to be used.
Apps Manager app management system provides the solution for that. The system remembers all the details of the card, physical device & internet.
A developer can easily activate and deactivate all cards, physical devices & internet.
Whenever a developer tries to create a new account and select a card, pc or internet then the system gives you a warning message if it's already used with other accounts or not. So it will decrease the maximum risk of creating and opening an account.