T-codes

C

CO

• CO01/02/03:Production Order

  CG

• CG3Y:Download file from server,never used this before

  CM

• CMOD:Management of SAP Enhancement(SMOD),also can be used to change standard text,ex:Change ‘matnr‘ text ‘‘

  G

  GS

• GS01/02/03:Sets store in table SETLEAR,more powerful than STVARV

  K

  KO

• KO01/02/03:Internal Order

  S

  SA

• SA38:Program execution,not editable

  SC

• SCOT:SAP connect admin,ever used to open SMTP node for email sending

  SE

• SE03:Transport Organizer Tools
• SE09:Transport requests
• SE16N:General tabel display,use&sap_edit to edit entries
• SE30:ABAP Runtime Analysis
• SE39:Compare difference between two programs
• SE43:Menu maintenance
• SE54:Directly create table maintenance without go to SE11->Utilities
• SE63:Standart translation,I‘ve never used this before
• SE81:Application Hierarchy
• SE84:Object Navigator
• SE91:Message

• SE93:T-codes

SM

• SM04:User list
• SM12:Unlock lock entries,usually uesed when sap sys log out abnormally
• SM30:Table maintenance
• SM36/37:Background job definition/view
• SM59:RFC connections configuration
• SMOD:SAP Enhancement

• SMW0(this is zero):Template Object,Often used to maintain Excel templates

  SO

• SOST:SAP connect transmission requests,ever used to check the email

  SS

• SSM2:Check initial menu of sys,and enter it to SE43 for customizing

  SU

• SU01:User parameters maintenance

  ST

• ST05:Performance Analysis,use to trace database actions,find tables- SE16N:General tabel display,use&sap_edit to edit entries
• ST22:Analyse ABAP Runtime Error
• STMS:Transport management sys

• STVARV:Parameters & Selection Options maintained in table TVARVC

  M

  ME

• ME21/22/23N:PO

• ME51/52/53N:PR

  O

  OB

• OB52:Change Posting Periods

Tables-rarely known

E

• E070:Header of Requests/Tasks

  T

• TSTC:SAP Transaction Codes

  M

• MODSAP:SAP Enhancements

T-codes & Rarely Seen Tables(Updated from previous note)

原文：https://www.cnblogs.com/aurora-cj/p/10303998.html