I learnt through the ICWS documentation, the best practice to handle the connection is performing the validation for 503 error code and looping the alternate host list until its 201. Does this also apply to the Connection using SSO authentication. Example; I am trying to establish a connection using the SSO token, do we still need to perform the 503/201 check and retry OR that is unneccassary as we have already got the token from the server and that tells its not down ?