When you invite the counselor on Common App, use
The Common Application is one of the most important elements of
Before you start anything, you should start collecting the documents, information, and ideas you'll need to create a great Common App submission:
High school/secondary school transcript
A list of extracurricular activities
Test scores and dates
Family information
Here is the whole list of the requirements.
Register for an account at apply.commonapp.org preferably using your school email address. If you are having difficulty registering for an account, look at the video attached.
Use the playlist below to register your common app account and complete it.