The FileCap Office 365 add-in can be installed using the manifest file, which can be downloaded from the"Add-ins and apps" page under "Web Outlook."
There are two options for installing the FileCap Office 365 add-in, per user or for the entire organization, both of which are explained below.
Note: Changes made within Exchange/Office 365 are not implemented immediately in all situations. As a result, sometimes the add-in may not be visible for some time after installation. Source:The following Microsoft article.
When the application is added select whether the application should be available to all users and whether it should be automatically enabled for all. Here you can also set whether the add-in is disabled by the end user
Check the add-in in OWA
To test the operation of the add-in, the following steps can be performed:
Log in to the mailbox
Create a new email
Click on the FileCap icon at the bottom
The FileCap add-in will open on the right side of the screen.
Is the add-in not available to users?
Create a new email
Click the 3 dots at the bottom of the add-in ribbon and click "Get Add-ins."
Go to "Admin-managed"
Click "Add" to make the FIleCap add-in available.
Follow the steps under "Check the plugin in OWA" to verify that the add-in loads correctly.
The add-in is not showing on new emails?
If the add-in is not displayed by default when creating new emails, the following steps can be taken.
Click "View" at the top and choose "View settings."
Go to "Mail" -> "Customize actions."
Select FileCap under "Message Surface" and "Toolbar."
Create a new email, by default the FileCap add-in should now be displayed.
Follow the steps under "Check the add-in in OWA" to verify that the add-in loads correctly.