To get started as a BIM 360 account administrator, respond to an email invitation.
The first account administrator receives an email invitation from Autodesk. That administrator can invite more account administrators. From this invitation, sign in to your BIM 360 account using your Autodesk ID, which gives you single-sign-in access to multiple Autodesk sites.
In the Welcome to Autodesk BIM 360 email, click Get Started to launch Account Administration. Each welcome email is meant for only one person. Do not forward it to others.
The first time you access Account Administration, you do so from the email invitation.
If the username is already in use or the ID is already associated with your email address, you are prompted to try again. To verify credentials or reset your password, go to http://accounts.autodesk.com.