When contacts no longer appear in the sidebar, you can use the following methods to restore them and view the messages you've exchanged.
When a contact disappears from the sidebar, open your Contacts list and select the contact.
To add a contact (desktop client)
On the navigation bar, choose Contacts.
In the Contacts dialog box, select the contact.
To add a contact (web app)
Under Quick actions, choose View my contacts.
In the Contacts dialog box, select the contact.
Your contacts list may not display some of your past contacts. For example, a contact may have left your company. If you need to see the messages you exchanged, use the All messages command. These steps apply to both clients.
To use the command
In the sidebar, choose All messages.
Scroll through the messages and select the contact.
Note
The number of past contacts and messages varies, depending on your company's data retention policy. For more information about your company's policy, contact your manager or IT administrator.
