If you don't have a CSV file of people to import, you can add people one by one.
People can add themselves by logging into Church Center, registering for an event, joining a group, checking in to an event, filling out a form, or giving a donation.
Check out this clip from Planning Center University.
From the People tab, click Add Person.
Enter the name of the person you'd like to add. The search results will show people who are already in your account.
After typing the full name, click Create A New Person, which will take you to a popup where you can enter their information.
Add more information to a person's profile by using notes, custom fields, or allowing them to fill out forms.