External users are the most restricted user type in SAP Build Work Zone, advanced edition. They are guests of your organization and are given access to only the specific private external workspaces to which they have been invited, as well as to their dedicated home pages (for external users) and their user profile1. Therefore, some actions that external users cannot do are:
Create workspaces: External users cannot create workspaces of any type. They can only join workspaces that they are invited to by internal users or other external users2.
Share user homepages with other external users: External users cannot share their user homepages with other external users. They can only view their own user homepage, which shows the workspaces they are a member of and the content they have recently accessed3.
Access My Workspace: External users cannot access My Workspace, which is a personal workspace for internal users where they can store and manage their own content. External users can only access the workspaces they are invited to and the content they are allowed to see4.
External users can do the following actions:
Post in workspace forums: External users can post in workspace forums of the workspaces they are a member of. They can also subscribe to topics, receive notifications, and mark answers as helpful or correct5.
Upload a custom profile picture: External users can upload a custom profile picture for their user profile. They can also edit their profile information, such as name, email, phone number, and bio.
References:
1: External Users - Overview
2: Managing External Users
3: User Home Page for External Users
4: My Workspace
5: Forum Section
: User Profile
