When your account is first created, you will receive an email message to the address you chose, that will also be your DOKKA username.
The email will contain a link to login for the first time. You will be prompted to select a password.
Once you choose your password, you will be taken into the system.
If you have access to one Company, you will be directed to the Workspace for that company. If you have access to more than one company, you will be directed to your Home screen. Here you will be able to view your companies.
Go to the DOKKA login page.