Email app on Android will not allow G-Suite email account to be added after PW change

[Android Central Question]

The phone has 3 email accounts on it (4 including the one with the issue) that were all working fine a few hours ago. The newest email account needed to have a password change. The account is a G-Suite email account. Once the user changed the password, the phone would not let him check that email account. The account IS on the phone in the gmail app but the user would prefer to have all 4 email accounts in one app/icon on the home screen. Any ideas?