This is Part 2 of ABAP/BASIS transactions codes list.
To find more ABAP/BASIS transaction codes visit previous post at Standard ABAP/BASIS Transaction Codes : Part1

Transaction Code Description
SFT2 Maintain public holiday calendar
SFT3 Maintain factory calendar
SHD0 Transaction variant maintenance
SHDB Batch input recorder
SIAC1 Web Object Administration
SICK Installation check
SIN1  SAPBPT: Inbox
SINA  SAPBPT: Maintain Standard Config.
SLG0  Application Log: ObjectMaintenance
SLIN ABAP: Extended Program Check
SM01 Lock transactions
SM02 System messages
SM04 Overview of users
SM12 Lock table entries (unlock locked tables)
SM13 Display Update Records
SM14  Update Program Administration
SM21 System log
SM23  System Log Analysis
SM28  Installation Check
SM29  Model Transfer for Tables
SM30 Maintain Table Views
SM31 Table Maintenance
SM32 Table maintenance
SM33  Display Table ParameterID TAB
SM34  Viewcluster maintenancecall
SM35 View Batch Input Sessions
SM36 Schedule background jobs
SM37 View background jobs
SM38  Queue Maintenance Transaction
SM39 Job analysis
SM49 Execute External OS commands
SM50 Process Overview
SM51 Delete jobs from system (BDC)
SM54  TXCOM maintenance
SM55  THOST maintenance
SM56  Number Range Buffer
SM58 Error log for asynchronous RFC
SM59 RFC Destinations (Display/Maintain)
SM60  Borrow/Return Objects
SM62 Display/Maintain events
SM63 Display/Maintain Operating Mode Sets
SM64 Event trigger
SM65 Background Processing Analysis Tool
SM66 Global work process overview
SM67  Job scheduling
SM68  Job administration
SM69 Maintain External OS Commands
SMEN Display the menu path to get to a transaction
SMGW  Gateway Monitor
SMLG Maintain Logon Group
SMLI  Language import utility
SMLT  Language transport utility
SMOD SAP Enhancement Management
SMT1  Trusted Systems (Display <-> Maint.)
SMT2  Trusting systems (Display <->Maint.)
SMW0 SAP WEB Repository(binary data) - add/ mod images(used to put in screen containers)
SMX View background jobs
SNOTE SAP note assistant (if installed)
SNRO Object browser for number range maintenance
SO02  SAPoffice: Outbox
SO03  SAPoffice: Private Folders
SO04  SAPoffice: Shared Folders
SO05  SAPoffice: Private Trash
SO06  SAPoffice: Substitutionon/off
SO07  SAPoffice: Resubmission
SO10  SAPscript: Standard Texts
SO12  SAPoffice: User Master
SO13  SAPoffice: Substitute
SO15  SAPoffice: DistributionLists
SO16  SAPoffice: Profile
SO17  SAPoffice: Delete Shared Trash
SO18  SAPoffice: Shared Trash
SO19  SAPoffice: Default Documents
SO21  Maintain PC Work Directory
SO22  SAPoffice: Delete PC Temp. Files
SO23  SAPoffice: DistributionLists
SO24  SAPoffice: Maintenance of default PC
SO28  Maintain SOGR
SO30  SAPoffice: Reorg.
SO31  Reorganization (daily)
SO36  Create Automatic Forwarding
SO38  SAPoffice: Synchr. of Folder Auths.
SO40  SAPoffice: Cust. LayoutSet MAIL
SO41  SAPoffice: Cust. LayoutSet TELEFAX
SO42  SAPoffice: Cust.Layout Set TELEFAX_K
SO43  SAPoffice: Cust.Layout Set TELEFAX_M
SO44  SAPoffice: Cust. LayoutSet TELEX
SO70  Hypertext: Display/Maint. Structure
SO71  Test plan management
SO72  Maintain Hypertext Module
SO73  Import graphic into SAPfind
SO80  SAPfind: Free Text Retrieval Dialog
SO81  SAPfind: Free Text Indexing (Test)
SO82  SAPfind: Free Text Retrieval Batch
SO95  Pregenerated Search Queries – Select
SO99  Put Information System
SOA0  ArchiveLink Workflow document types
SOBJ  Attribute Maintenance Objects
SOLE  OLE Applications
SOLI  Load OLE type info
SOPE  Exclude Document Classes
SOTD  SAPoffice: Maintain Object Types
SOY1  SAPoffice: Mass Maint. Users
SOY2  SAPoffice: Statistics data collect
SOY3  SAPoffice: Statistics Evaluation
SOY4  SAPoffice: Access overview
SOY5  SAPoffice: Inbox overview
SOY6  SAPoffice: Document overview
SOY7  SAPoffice: Folder overview
SOY8  SAPoffice: Mass Archiving
SOY9  SAPoffice: Inbox Reorg.
SOYA  SAPoffice: Change folder owner
SP00 Spool and Relate Area
SP01 Output Controller
SP02 Display output requests
SP11 TemSe directory
SP12 TemSe Administration
SPAD Spool Administration
SPAM SAP Patch Manager
SPAU Display Modified DE Objects
SPCC Spool: Consistency check
SPDD Intersection SAP transport/customer modifications, DDIC
SPHA  Telephony administration
SPIC Spool : Installation Check
SPRM  Current Customizing
SPRO Start SAP IMG (Implementation Guide)
SQ00 ABAP/4 Query: Start Queries
SQ01 ABAP/4 Query: Maintain Queries
SQ02 ABAP/4 Query: Maintain Funct. Areas
SQ03 ABAP/4 Query: Maintain User Groups
SQ07 ABAP/4 Query: Language Comparison
SQVI  QuickViewer
SRZL  CCMS
SSAA  System Administration Assistant
SSCA  Appointment Diary: Administration
SSM1  Session Manager generation call
SSM5  Create Activity Group
ST01 SAP System Trace
ST02 Setups/Tune Buffers
ST03 Performance, SAP Statistics, Workload
ST04 Select DB activities
ST05 Performance trace
ST06 Operating System Monitor
ST07 Application monitor
ST08 Network monitor
ST09 Network Alert monitor
ST10 Table call statistics
ST11 Display developer trace
ST12 Application monitor
ST14 Application analysis
ST22 ABAP/4 Runtime Error Analysis
ST62  Create industry short texts
ST4A Oracle: analyze the shared cursor cache
STAT Local transaction statistics
STMS Transport Management System
STUN Performance Monitoring (not available in R/3 4.6x)
STW1  Test Workbench: Test catalog
STW2  Test workbench: Test plan
STW3  Test workbench: Test package
STW4  Test Workbench: Edit test package
STW5  C maintenance table TTPLA
STZAC Maintain time zone act.in client
STZAD Disp.time zone activat.in client
SU01 User maintenance
SU01D User Display
SU02 Maintain authorization profiles
SU03 Maintain authorizations
SU05 Maintain Internet users
SU10 User Mass Maintenance
SU12 Delete ALL Users
SU2 Maintain user parameters
SU20  Maintain Authorization  Fields
SU21  Maintain Authorization Objects
SU22 Authorization object check in transactions
SU24  Disables Authorization Checks
SU25  Imports SAP Check Indicators defaults
SU26  Adjust Authorization checks
SU3 Maintain own user parameters
SU30  Total checks in the area of auth.
SU52  Maintain own user parameters
SU53 Retrieve authorisation data for object, execute after error message is displayed
SU54  List for Session Manager
SU56 Analyze User Buffer
SUIM Infosystem Authorizations
SUMM  Global User Manager
SUPC Profiles for activity groups
SUPF  Integrated User Maintenance
SUPO  Maintain Organization Levels
SWDC  Workflow Definition
SWU3 Consistency check: Customizing
SXDA Data transfer workbench
TU02  Display Active Parameters
USMM Customer measurement
VOK2 Output determination by functional area / output type (Output programs).
WEDI IDoc and EDI Basis
WE02 IDoc  Display
WE07 IDoc Statistics
WE20 Partner profiles
WE21 Port definition
WE46 IDoc administration
WE47 Status Maintenance
$SYNC Refreshes all buffers, except the program buffer
$TAB Refreshes the table buffers

To find more ABAP/BASIS transaction codes visit Standard ABAP/BASIS Transaction Codes : Part1

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