If you want to work on projects with team members and guests, you can search and add them by following these steps:
- Open your project
- Click 'Share'
- Under the 'Add people to collaborate', search for existing users then click 'Add'
If the user you are adding is not already in your team:
- Under Team, click 'Add people'
- Enter the email addresses of the people you would like to invite to projects
- Select role
- Click 'Invite'