Here is the complete list of SAP TCodes in Basis Components module. The most commonly used TCodes are at the top of the list. Click on a sub-module to see the TCodes specific to that module.

BW Service API TCodes (BC-BW)

Tcode Description
RSA3 Extractor Checker
RSA7 BW Delta Queue Monitor
RSA6 Maintain DataSources
RSA5 Install Business Content
RSO2 Oltp Metadata Repository
SBIW BIW in IMG for OLTP
RSA2 SAPI DataSource Repository
RSA9 Transfer Application Components
RSA8 DataSource Repository
RSSGPCLA Maintain program class
RSMD Extractor Checker
RSO3 Set Up Deltas for Master Data
ODQMON Monitor for Operational Delta Queue
RSA0 Content Settings Maintenance
RSRR_WEB Report-Report Interface in Web
..... ..................................

See the complete list of SAP BC BW Service API TCodes (BC-BW)

Client/Server Technology TCodes (BC-CST)

Tcode Description
SM50 Work Process Overview
SNAPSHOTS Snapshot Administration
SM12 Display and Delete Locks
SMICM ICM Monitor
SM13 Administrate Update Records
ST01 System Trace
SM51 List of SAP Systems
SM04 User List
SMGW Gateway Monitor
ST11 Display Developer Traces
SM02 System Messages
SMMS Message Server Monitor
SM14 Update Program Administration
SM54 TXCOM Maintenance
SM56 Number Range Buffer
..... ..................................

Upgrade - General TCodes (BC-UPG)

Tcode Description
SPAU Display Modified DE Objects
SNOTE Note Assistant
SPDD Display Modified DDIC Objects
SGEN SAP Load Generator
SE95 Modification Browser
COFI Command File Creation
ANST Automated Note Search Tool
ICNV Incremental Conversion
SPAM Support Package Manager
SPAR Determine Storage Parameters
SAINT Add-On Installation Tool
SDIN General Table Display
IMIG Incremental Migration
SCWB Correction Workbench
ANST_SEARCH_TOOL Automated Note Search Tool
..... ..................................

See the complete list of SAP BC Upgrade - General TCodes (BC-UPG)

Security TCodes (BC-SEC)

Tcode Description
SU01 User Maintenance
PFCG Role Maintenance
SU53 Evaluate Authorization Check
SU24 Maintain Authorization Defaults
SPNEGO SPNego Configuration
SUIM User Information System
SU3 Maintain Users Own Data
SECSTORE Administration of Secure Storage
SU10 User Mass Maintenance
STRUST Trust Manager
SU25 Upgrade Tool for Profile Generator
SU21 Maintain Authorization Objects
SM20 Analysis of Security Audit Log
SLICENSE Administer SAP Licenses
STRUSTSSO2 Trust Manager for Logon Ticket
..... ..................................

See the complete list of SAP BC Security TCodes (BC-SEC)

SAP NetWeaver Mobile - Use subcomponents TCodes (BC-MOB)

Tcode Description
MCD MI:Process Mobile Component
MEREP_MON Mobile Monitor
MEREP_SBUILDER SyncBO Builder
MEREP_PD Profile Dialog
SDOE_WB Data Orchestration Workbench
SDOE_SR DOE Setup and Repair
SDOE_LOAD Trigger Backend Load
MEREP_MIG Migration
MI_MCD MI:Process Mobile Component
MEREP_LOG Activity Log
MEREP_EX_REPLIC Execute Replicator
SDOE_UPLOAD_ARCHIVE Transaction to Upload Archive to DOE
MEREP_PURGE Purge Tool
ME_WIZARD ME: Registration and Generation
SDOE_CLEANUP Clean up for all serv. in DOE
..... ..................................

Database Interface, Database Platforms TCodes (BC-DB)

Tcode Description
DB13 DBA Planning Calendar
DBACOCKPIT Start DBA Cockpit
LC10 liveCache Assistant
DB17 Configure DB Check
DBCO Database Connection Maintenance
DB12 DBA Backup Logs
DB20 Update DB Statistics
DB50 SAP DB Assistant
DB59 MaxDB/liveCache System Overview
DB14 Display DBA Operation Logs
DB16 Display DB Check Results
DB13C Central DBA Planning Calendar
DB2J DB2 z/OS: Manage JCL Jobs
DB4COCKPIT iSeries: Cockpit for CCMS Transact.
DB21 Configure DB Statistics
..... ..................................

Internationalization (I18N) TCodes (BC-I18)

Tcode Description
UCCHECK Unicode Syntax Check
SPUMG Unicode Preconversion
SUMG Unicode Postconversion
SNLS Display NLS (character set, lang.)
SCP Display and Maintain Code Page
SNL1 Display NLS (character set, lang.)
I18N Internationalization
SNL3 Develop NLS (character set, lang...)
CLJP Specify Japanese calender
SNL2 Set NLS (character set, language...)
SCPMIG Character Conversion
REPAST I18N:repast transaction

ABAP Runtime Environment TCodes (BC-ABA)

Tcode Description
XSLT XSLT tester
ST22 ABAP Dump Analysis
SM35 Batch Input Monitoring
SHD0 Transaction and Screen Variants
SHDB Batch Input Transaction Recorder
SAS ABAP Debugger Scripting
SICK Installation Check
SMI Memory Inspector
ABAPDOCU Display ABAP Documentation
SLIN ABAP Extended Program Check
SM01 Lock Transactions
BCABA BC ABAP Programming
VARD Display report variant
SAAB Checkpoints that Can Be Activated
SAMT ABAP Program Set Processing
..... ..................................

ABAP Workbench, Java IDE and Infrastructure TCodes (BC-DWB)

Tcode Description
SE11 ABAP Dictionary Maintenance
SE38 ABAP Editor
SE16 Data Browser
SE80 Object Navigator
SE37 ABAP Function Modules
CMOD Enhancements
SMOD SAP Enhancement Management
SE93 Maintain Transaction Codes
SE14 Utilities for Dictionary Tables
SPROXY Enterprise Repository Browser
SE30 ABAP Objects Runtime Analysis
SE18 Business Add-Ins: Definitions
SE24 Class Builder
ATC ATC Administration
SE51 Screen Painter
..... ..................................

Virtual Machine Container TCodes (BC-VMC)

Tcode Description
SM53 VMC Monitoring and Administration
SM52 Virtual Machine Overview
VMCJDB VM Container Mini Debugger

Basis Services / Communication Interfaces TCodes (BC-SRV)

Tcode Description
SCOT SAPconnect - Administration
SOST SAPconnect Send Requests
SQ01 SAP Query: Maintain queries
SO10 SAPscript: Standard Texts
SE71 SAPscript form
SBWP SAP Business Workplace
SQVI QuickViewer
SE78 Administration of Form Graphics
SLG1 Application Log: Display Logs
SQ02 SAP Query: Maintain InfoSet
OB08 C FI Maintain table TCURR
KPRO KPRO Administration
SNRO Number Range Objects
SFP Form Builder
SA38 ABAP Reporting
..... ..................................

Enterprise Service Infrastructure TCodes (BC-ESI)

Tcode Description
WSADMIN Web Service Administration
SIW Service Implementation Workbench
WSCONFIG Release Web Services
LPCONFIG Maintain Logical Ports
WSPUBLISH Publish Web services
SOAMANAGER SOA Manager
SRT_UTIL Tracing Utilities for Web Service
SRT_ADMIN Maintenance SRT
SEW Service Extension Workbench
SRDEBUG Activate Remote Debugging
SRTUTIL Tracing Utilities for Web Service
WSCLASS Web Service Classification
WSPARAM Enterprise Registry Parameters(New)
SRT_MONI WS Message Monitor
WSADMIN2 Web Service Administration (7.10)
..... ..................................

Change & Transport System TCodes (BC-CTS)

Tcode Description
STMS Transport Management System
SE09 Transport Organizer
SE10 Transport Organizer
SCC4 Client Administration
SE03 Transport Organizer Tools
SCC1 Client Copy - Special Selections
SE01 Transport Organizer (Extended)
SEPA EPS Server: Administration
SMLT Language Management
SE06 Set Up Transport Organizer
SCC8 Client Export
SCCL Local Client Copy
SOBJ Maintenance Object Attributes
SCC9 Remote Client Copy
SCC3 Client Copy Log
..... ..................................

Exchange Infrastructure TCodes (BC-XI)

Tcode Description
SXMB_MONI Integration Engine - Monitoring
SXI_CACHE Integration Directory Cache
SXMB_ADM Integration Engine - Administration
SXI_MONITOR XI: Message Monitoring
SXMB_IFR Start Integration Builder
IDX5 IDoc Adapter - Monitoring
SXMB_MONI_BPE Process Engine - Monitoring
SWF_XI_CUSTOMIZING Automatic BPM Customizing
SXMB_ADMIN Integration Engine - All Functions
SWF_INB_CONF Configuration Inbound Processing
SXI_MAPPING_TEST Test Environment for AII
SWF_BAM BAM: Administration
IDXPW IDoc Package Wizard
SXMS_LMS_CONF User-Defined Search: Config.
IDXP Monitor for Message Packages
..... ..................................

Guided Procedure TCodes (BC-GP)

Tcode Description
EUPTSP GP Content Transport

See the complete list of SAP BC Guided Procedure TCodes (BC-GP)

Musing Tools TCodes (BC-MUS)

Tcode Description
LPD_CUST Launchpad customizing
POWL_QUERY Maintain POWL Query definition
POWL_QUERYR Maintain POWL Query role assignment
POWL_TYPE Maintain POWL Type definition
POWL_TYPER Maintain POWL Type role assignment
POWL_CAT Maintain POWL categories
POWL_QUERYU Maintain POWL Query user assignment
FPB_MAINTAIN_HIER Personalization: Hierarchy Maint.
POWL_COCKPIT POWL Administrator Cockpit
FPB_MAINTAIN_PERS_S Individual Processing of Pers. Data
POWL_EASY Easy-POWL Feeder Builder
FPB_MAINTAIN_PERS_M Collective Processing of Pers. Data
POWL_TYPEU Maintain POWL Type user assignment
APB_LPD_CALL_TRANS APB_LPD_CALL_TRANSACTION
WDK_APPL_REG WDK application registration
..... ..................................

See the complete list of SAP BC Musing Tools TCodes (BC-MUS)

Business Server Pages TCodes (BC-BSP)

Tcode Description
CI_IMPORT Import Device Properties

TCodes (FIN-FSCM-BC-SB)

Tcode Description
FBC_BM_V Contracts
FBC_BM Business Model

See the complete list of SAP BC TCodes (FIN-FSCM-BC-SB)