Step 1: Go to “O365 Admin Center.”
Click Admin centers at the bottom of the left menu and choose Exchange.
Step 2: Go to add-ins
In the Exchange Admin Center choose add-ins
Add from URL
In the menu click the "+" and choose Add from URL.
Step 3: Add the AskCody Manifest
Enter the Manifest URL for the add-in.
Step 4: Manage your add-in
Tap the add-in to control the add-in settings for your organization.
Step 5: Edit App Settings
Choose to make the add-in available to users in your organization and specify user defaults