Licensed agents and administrators.
Next you will be asked for a six-digit code from an authenticator app on your phone — Google Authenticator or Microsoft Authenticator, both free. How the code works, and what to do on a new phone.
Still stuck? Email support@msfpartners.llc and a person will answer.
portal.msfpartners.llc
One human, one login. Never sign in for someone else and never let anyone use your session — the record of who did what is only worth anything if that holds.