Our Outlook addin saves and loads custom properties. Our server code may also add a property to the list of the addin's custom properties via EWS and OWA and Windows Outlook see those server added properties just fine but for some reason in Outlook for Mac a server added custom property is not available.
Ideas? Is it a bug or some kind of a restriction?
Seems like a Mac Outlook bug because OWA and Windows versions work just fine.
As of 16.14.1 this is still an issue. When will this be fixed?
This looks like a bug in Mac Outlook. We are working towards fixing it.