First thing you need to do is to log in to your webmaster tools account (https://www.google.com/webmasters/tools/).
To add a user >
- Choose a property in Search Console.
- Click the gear icon , then select Users & Property Owners.
- Click Add a new user.
- Type the email address of the user you want to add and select the type of user. Set permissions to full.
- Click Add.
The property will be added to the new user's Search Console account automatically.