方法一：可以直接用Tcode：SUIM (User Information System)。
方法二：用SA38直接执行熟悉的报表，一些报表如下：
PROGRAM: Description
RSUSR000 Current Active Users
RSUSR001 Infosystem authorizations
RSUSR002 Users by complex selection criteria
RSUSR002_ADDRESS Users by address data
RSUSR003 Check the Passwords of Users SAP* and DDIC in All Clients
RSUSR004 Restrict User Values to the Following Simple Profiles and Auth. Objs.
RSUSR005 List of Users With Critical Authorizations
RSUSR006 List of Users with Incorrect Logons
RSUSR007 List Users Whose Address Data is Incomplete
RSUSR008 By Critical Combinations of Authorizations at Transaction Start
RSUSR009 List of Users With Critical Authorizations
RSUSR010 Executable Transactions (All Selection Options)
RSUSR011
RSUSR012 Search authorizations, profiles and users with specified object values
RSUSR020 Profiles by complex selection criteria
RSUSR030 Authorizations by Complex Selection Criteria
RSUSR040 Authorization Objects by Complex Selection Criteria
RSUSR050 Comparisons
RSUSR060 Where-used lists
RSUSR060OBJ Where-Used List for Authorization Object in Programs and Transactions
RSUSR061 Enter Authorization Fields
RSUSR070 Roles by complex selection criteria
方法三： 用SE16直接查看USR02这个表。
方法四： 在SU01里，用户栏直接下拉或F4。