SAP ABAP Table USR15 (External User Name (Replaced By Table USRACL))
Hierarchy
SAP_BASIS (Software Component) SAP Basis Component
   BC-SEC-USR-ADM (Application Component) User and Authorization Management
     SUSR (Package) ABAP User Administration
Basic Data
Table Category TRANSP    Transparent table 
Transparent table USR15   Table Relationship Diagram
Short Description External User Name (Replaced By Table USRACL)    
Delivery and Maintenance
Pool/cluster      
Delivery Class A   Application Table (Master- and Transaction Data) 
Data Browser/Table View Maintenance     Display/Maintenance Allowed with Restrictions 
Components
     
Field Key Data Element Domain Data
Type
Length Decimal
Places
Short Description Check
table
1 MANDT MANDT MANDT CLNT 3   0   Client *
2 BNAME XUBNAME XUBNAME CHAR 12   0   User Name in User Master Record *
3 LONGNAME XULONGNAME XULONGNAME CHAR 255   0   Long user name (for ext. security systems)  
4 AUTHNAME XUAUTHNAME XUAUTHNAME CHAR 240   0   Unique user key of external security systems  
History
Last changed by/on SAP  20110908 
SAP Release Created in