Kandarim wrote:IIt used to be that the username was added by userid=<name>, but I'm unsure whether this is still required?
The default client still sends the userid parameter. It isn't currently used by the store, but may be in the future to ensure that items are delivered to the account that the client was logged in on, rather than the account that one is logged in on at the website, in case they differ, so I'd recommend you keep it.