1,426 votes85 comments · Feature Requests and Feedback » Add-in: Outlook · Flag idea as inappropriate… · Admin →
Thanks for your feedback, the feature is currently in preview. Documentation can be viewed here: https://docs.microsoft.com/en-us/office/dev/add-ins/reference/manifest/supportssharedfolders
We are actively working on making it generally available and will update the status as soon as it is done.Anonymous commented
The ability for an outlook add-in to work with shared mailboxes would be something we would use all the time as we rely upon shared mailboxes and apps a great deal, but there are problems using them both together.