Objective:

Add-in not accessible from email inbox in Office 365
Buttons gray/grey/grayed out in Inbox view
Buttons gray/grey/grayed out in Sent folder view

Environment:

Outlook
Office 365

Additional Information:

The Clio Add-in for Microsoft Office 365 is available to subscribers of our Boutique, Elite, and EU plans.
For instructions on how to turn on the Reading Pane in Outlook, see here.

Answer:

The Clio Outlook Add-in is designed to function when viewing an individual email. It is necessary to click into an email to make the options available.

Alternatively, turning on the Reading Pane in the Outlook Inbox will make the options available.