I have one question about this section:

Enter the credential name - Enter the domain account, and password. Repeat the password in the 'Confirm password'. This account should have the right access to the application database.

We use windows authentication to connect to the database. So if I put individual account, I can use network password. What if I need to add a group for credential, and the group doesn't have a network password. What should I put in password field?