Use the following steps to add a contact in Windows or OSX.
To add contacts
At the top of the Amazon Chime window, choose Add Contact.
Enter the email address of the colleague to collaborate with.
Choose Add Contact.
If the colleague has created an Amazon Chime account using the email address that you entered, they are added to your contacts. To view your contacts, choose Message at the top of the Amazon Chime window.
If the colleague has not yet created an Amazon Chime account, they receive an invite.