The RememberMe property when the user authenticates to your service will determine whether the Users Session is saved under the Temporary SessionId (ss-id) or Permanent SessionId (ss-pid), this preference is specified in the Users ss-opt=temp/perm
Cookie.
By default if RememberMe=true
isn't specified, ServiceStack defaults to storing the users session against the temporary ss-id
cookie, in which case is the only one that needs to be sent.