The Sidexis 4 service password depends on the installation and is not a single default code. It is the password set during the initial installation of the Sidexis 4 server, so you must contact the IT professional who set it up. For some versions, a default password like 2BeChanged! may be used for the SQL sa user, and the SidexisXG service password is the date backwards (e.g., 5071 for May 17th).