Add strong recommendation to avoid openType and consider Microsoft Graph extensions plan proposal.docx
Comment: we made the distinction between using an open type where customers could add custom properties (which was the original intent of open types) versus defining a type as open for cases where the service wanted to return unschematized properties (i.e., because they didn't want to commit to a specific set of properties).
Add strong recommendation to avoid openType and consider Microsoft Graph extensions plan proposal.docx Comment: we made the distinction between using an open type where customers could add custom properties (which was the original intent of open types) versus defining a type as open for cases where the service wanted to return unschematized properties (i.e., because they didn't want to commit to a specific set of properties).