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.Kalyan commented
I have updated outlook to 1904 version and tested in May 2019 shared calendar add-in is working. It suddently stopped working in the month of June. Does this feature removed from preview ? How do i find out about this feature being removed or for troubleshooting any information exists ?