Overview: Creating/Maintaining User Master Records 
The user master record contains all master data for a user in the R/3 System. This section describes how to create and maintain user master records.
For information about how to organize the maintenance tasks, see:
Organizing User and Authorization MaintenanceFor information about the functions for maintaining user master records, choose: Tools
® Administration ® User Maintenance ® Users.If you only want to display a user master record, choose Tools ® Administration ® User maintenance ® Display users.
Maintaining User Master Records
The Effect of Changes on User Master Records Locking and Unlocking User Master Records Changing Passwords Displaying Change Documents Archiving Change Documents Changing Several User Master Records Where is User and Authorization Data Stored? Creating and Maintaining Internet Users Using the Infosystem