Alltough asked before I don't know that this have been answered: Is there or will there be a way to import customers to Servicecamp from say, a CSV file? Having users in an organization have to register them selves opens up for all kinds of potential mistakes as for naming conventions, email addreses and more. It really need to have an 'import customer feature'.
Unfortunately at this moment we do not have feature for importing customers list into servicecamp.
We do also have in mind to implement this feature however can't provide any exact ETA for now.