DSXchange

While installing Datastage 8.0 on window, I have given credential to
user dsadmin and dsuser. On that day I logged in also.
But on next day when I tried to log in with user dsadmin I got error
"No Datastage Credential were found on the Domain for the user ('dsadmin') and Datastage server ('MLBP-LAP17')".
Datastage Server is loacal host machine name.

Please throw some light on it.

Open the web console for Information Server and verify that the credentials were indeed saved.

There is a particularly nasty trap for new players with many of the screens in the web console for Information Server. You have to scroll down to find the "Save and Close" button but, unless you save and close, any changes you made are discarded without warning.