BASIS 常用TCODE
Code Title(From Table TSTC) 

編程工具(Programming Tools)
SNRO Number Range Objects 　
SNRO Number Range Objects 　

啟動和停止(用戶)(Starting and Stopping(Users))
SM50 工作流程概述
SM04 User List 　
AL08 Users Logged On 　
SM02 System Messages 　
AL11 Display SAP Directories 　
ST11 Display Developer Traces 　

ABAP詞典(ABAP Dictionary)
SE14 Utilities for Dictionary Tables 　
SE54 Generate table view 　

系統監控(System Monitoring)
RZ20 CCMS Monitoring 　
RZ21 CCMS Monitoring Architecture Customizing 　
SMGW Gateway Monitor 　(SMGW這個T-CODE 是用來查看和管理透過SAP Gateway所登入該Instance的連線。)
SM21 System Log 　
SM50 Work Process Overview 　
SM51 SAP servers 　
SM66 Systemwide Work Process Overview 　
SM04 User list 　
AL08 Users Logged On 　
SMLG Maintain Logon Groups 　
SM12 Select Lock Entries 　
SM13 Update Records 　
ST22 ABAP dump analysis 　
ST03 Workload Analysis 　
AL11 Display SAP Directories 　
ST11 Display Developer Traces 　
ST01 System Trace 　
ST02 Tune Summary 　
DB02 Analyze Tables and Indices 　
DB12 DB Backup Monitor 　
DB13 DBA Planning Calender 　
ST04 DB Performance Analysis 　
ST06 Operating System Monitor 　

用戶和授權(Users and Authorizations)
SU01 User Maintenance 　
PFCG Activity Group Maintenance 　
SUIM Call AUTH Reporting Tree (Info Sys) 　
SU22 Maintain Assignment of Authorization Objects to Transactions 　
SU24 Maintain Assignment of Authorization Objects to Transactions 　
SU25 Profile Generator: Upgrade and First Installation 　
SCUM Central User Administration Distribution Model Assignment 　
SU53 Display Check Object if Not Authorized 　
SU56 Authorizations in the User Buffer for Logged-on User 　
ST01 System Trace 　

背景處理(Background Processing)
SM36 Define a new job 　
SM37 Monitor jobs 　
RZ01 Graphical job monitor 　
SM69 Define an external command 　
SM49 Execute external OS command 
　
系統管理助手(System Administration Assistant)
SSAA System Administration Assistant 　

計算中心管理系統配置(Computing Center Management System(CCMS) Configuration)
RZ10 Maintenance of Profile Parameters 　
RZ11 Profile Parameter Maintenance 　
RZ04 Maintenance SAP Instances 　
RZ03 Presentation, Control SAP Instances 　

資料庫管理和備份(Database Administration and Backups)
RZ20 CCMS Monitoring 　
DB13 DBA Planning Calender 　
DB24 Database Operations Monitor 　
DB20 Edit Database Statistics 　
DB21 Change DB Optimizer Control 　
ST04 DB Performance Analysis 　
DB02 Analyze Tables and Indices 　
DB03 Parameter Changes in DB 
　
DB Administration: Daily Check Procedures
RZ20 CCMS Monitoring 　
DB13 DBA Planning Calender 　
DB24 Database Operations Monitor 　
DB20 Edit Database Statistics 　
DB21 Change DB Optimizer Control 
　
資料庫性能分析(DB Performance Analysis)
DB02 Analyze Tables and Indices 　
DB03 Parameter Changes in DB 　

軟體組態配置(Software Logistics Configuration)
STMS Transport Management System 　
SCC4 Client Maintenance 　
SCCL Local Copy 　
SPRO_ADMIN Project Management 　
SE10 Customizing Organizer 　
SE09 Workbench Organizer 　

R/3打印與列印(R/3 Spool and Print)
SPAD 列印管理 　
SP01 列印列表或輸出請求

數據存檔(Data Archiving)
SARA Archive Management 　
FILE Cross-Client File Names/Paths 　
SF01 Client-Specific File Names 　
SARI Archive Information System 　
DB02 Analyze Tables and Indices 　
DB15 Data Archiving: Database Tables 　
AOBJ Archiving object definition 　

SAPNet
OSS1 Log On to the SAP Online Service System