1,396 votes84 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
Hi Microsoft, We need this feature of using the Outlook Web Add-ins in shared mailboxes as our users are mostly using the emails in the shared mail box.