Office 365 (Outlook on the Web) - How to Create a New Contact
Select the People icon from the lower left navigation bar if you are in Mail, Calendar, or Tasks - OR - if you are in another application, go to the top of the page, select the App launcher , and then select People.
1. To create a contact, select New Contact>New Contact.
2. This will open a blank contact form. Fill in any details that you want. Select Add more
to bring up additional field options.
3. When you’re done, select Create to save your changes or Discard to cancel.