We have some sample values for SM_SERVERSESSIONID like -
But what is the max max length?
Indicates a unique string that identifies a user session.
As per the script to set up session servers, the length of the field gets set to 64 characters, which means that SM_ServerSessionID is 64 characters atmaximum length.
Release: SOASMU99000-12.5-SOA Security Manager-Upgrade