Please plan your SCN wiki tasks accordingly.
Report the following error to SAP: SLM encountered an internal exception (BusinessActionException): Failed to perform action 'LookupFilesAction' for user 'SDTQOS00': com.sap.slm.exec.exception.BusinessActionException: Failed look up files for user 'SDTQOS00'. The reason is: Invalid Response code (401). Server <http://websmp230.sap-ag.de/sap(bD1lbA iZjPTAwMQ==)/bc/bsp/spn/swdc/slm/accessctrl.do> returned message <Unauthorized>
Validity: SP10 or higher
Reason: wrong S-user in SLM configuration
logon as user SDT<SID>00
go to Configuration
go to tab "Credentials" and check S-user
go to tab "SDT", part "Download" and check again S-user
S-user from tab "Credentials" have to be the same as S-user from tab
"SDT", part "Download"