A part of my organization with covered by the license, an admin can delete the internal user. If you want to delete an external user (guest, why not use a common word?). You need to involve IBM Support. In addition, if you have registered a guest and added this guest to a community, another user need to invovle IBM Support to be explained that that user has to invite the guest as his contact. How to know that an external user (guest) is already invited by another internal user? IBM Support is working..Let us synck our LDAP as an external profile register and by ourself keep order in CNX Cloud as we do on-premise.