If your new agent or manager created a profile for you, you will get an email to notify you. After clicking Access Profile you can log in to associate this new profile to your account. If you do not yet have a Casting Networks account, after clicking Access Profile, you can click Register on the login page to create a new account where you will be able to access your profile.
If you have multiple profiles, you will see a profile switcher on Your Profile showing your personal profile and/or any represented profiles you have. Click on the switcher to select a profile and make any necessary changes or updates.