1. SAP Help Portal - SAP Build Work Zone
advanced edition
"Workspace Feed": "The workspace feed is the central place for collaboration in a workspace. It's where you can post and view updates
comments
and discussions from other workspace members." This source confirms that a Workspace (C) has a feed for sharing updates.
2. SAP Help Portal - SAP Build Work Zone
advanced edition
"Managing Your Profile": "Your profile page is your personal space in your company's SAP Build Work Zone
advanced edition. You can post updates on your profile wall
upload and manage your content
and view your bookmarks." This source confirms that a user's Profile (D) has a wall/feed for updates.
3. SAP Help Portal - SAP Build Work Zone
advanced edition
"My Workspace": "My Workspace is your own personal and private workspace. It's a place where you can upload and manage your own content
create and manage your tasks
and view your bookmarks." This source clarifies that My Workspace (B) is private and not for sharing updates with others.