SM21 is a transaction code used in the SAP system tto view system log. It is used to analyze performance related issues and system errors by adminstrator apart from other functional modules.


On this page, you will find links to SAP Documentation, Wiki & Help Pages, Q&A, similar/related TCodes, Source Tables, and Authorization Objects for SM21.

SAP Help, Wiki, Q&A and other resources for SM21

Click the above link for the full list of resources and help pages, only the first few are posted below

  • SAP NetWeaver System Logging (SM21) - Monitoring and Administration Tools for Application Server ABAP - SAP Library

    An SAP system logs system messages, system warnings, and system error messages in system logs. Each instance has a local log in which system messages, warnings, and error messages in this instance are logged.

    "SAP NetWeaver System Logging (SM21) - Monitoring and Administration Tools for Application Server ABAP - SAP Library"

    http://help.sap.com/saphelp_SNC700_ehp02/helpdata/en/76/e99b1bf8b24e45933247ac04764749/content.htm

  • Initializing liveCache - SAP Help Portal

    In accordance with the authorization concept, the user has been assigned the role SAP_BC_LVC_SUPERUSER.

    https://help.sap.com/docs/SAP_NETWEAVER_DBOS/764e028f7733423f91f341024781a705/457e9240d4101c93e10000000a11466f.html

  • Starting liveCache - SAP Help Portal

    In accordance with the authorization concept, the user was assigned one of the roles SAP_BC_LVC_OPERATOR, SAP_BC_LVC_ADMINISTRATOR or SAP_BC_LVC_SUPERUSER.

    https://help.sap.com/docs/SAP_NETWEAVER_DBOS/764e028f7733423f91f341024781a705/457e31cbd4101c93e10000000a11466f.html

  • User Data - SAP Help Portal

    In accordance with the Authorization Concept, the user was assigned one of the roles SAP_BC_LVC_ADMINISTRATOR or SAP_BC_LVC_SUPERUSER. You can reach the user menu of the user with the authorizations that correspond to his or her role.

    https://help.sap.com/docs/JAVA_SERVER_FOR_S4HANA/764e028f7733423f91f341024781a705/458697b653f01c90e10000000a11466f.html

  • Stopping liveCache - SAP Help Portal

    In accordance with the authorization concept, the user was assigned one of the roles SAP_BC_LVC_OPERATOR, SAP_BC_LVC_ADMINISTRATOR or SAP_BC_LVC_SUPERUSER.

    https://help.sap.com/docs/JAVA_SERVER_FOR_S4HANA/764e028f7733423f91f341024781a705/457e31aad4101c93e10000000a11466f.html

  • Benutzerdaten - SAP Help Portal

    Mit Hilfe der Transaktion Integrationsdaten anzeigen/ändern können Sie unter anderem die Benutzerdaten für den DBM-Benutzer und für den Standard-Datenbankbenutzer angeben oder ändern.

    https://help.sap.com/docs/SAP_NETWEAVER_DBOS/764e028f7733423f91f341024781a705/457d9b01f3dd1956e10000000a11466f.html?locale=de-DE&state=PRODUCTION&version=118

  • liveCache starten - SAP Help Portal

    Dem Benutzer wurde gemäß dem Berechtigungskonzept eine der Rollen SAP_BC_LVC_OPERATOR, SAP_BC_LVC_ADMINISTRATOR oder SAP_BC_LVC_SUPERUSER zugewiesen.

    https://help.sap.com/docs/SAP_NETWEAVER_DBOS/6c68182e6b4d4c87b890a4e11d4a5aa1/457e31cbd4101c93e10000000a11466f.html?locale=de-DE&state=PRODUCTION&version=104

  • Consistency Check - SAP Help Portal

     Table of Contents Menu 

    https://help.sap.com/viewer/d0739d980ecf42ae9f3b4c19e21a4b6e/7.4.20/en-US/47d03848a55d296fe10000000a42189b.html

  • Authorizations for Administering qRFC - SAP Help Portal

    If you want to make changes in the qRFC Monitors (for example, delete, stop, start, or unlock queues, register/deregister destinations), you need authorization object S_ADMI_FCD (network administrator).

    "All activities in the qRFC Monitors are listed in the system log (transaction SM21)."

    https://help.sap.com/docs/SAP_NETWEAVER_740/753088fc00704d0a80e7fbd6803c8adb/48927aa7aa6b17cee10000000a421937.html

  • Checking Queue Status - SAP Help Portal

    Depending on the processing procedure of a Logical Unit of Work (LUW) , a queue in the qRFC Monitor or a LUW in the ARFCRSTATE table can have different status settings. Depending on the status, you can check whether it is necessary to edit it manually.

    https://help.sap.com/docs/SAP_NETWEAVER_731_BW_ABAP/753088fc00704d0a80e7fbd6803c8adb/48c1642f425831ebe10000000a42189b.html

  • View the full list of resources, SAP Help/Wiki pages and Q&A for SM21


Related Transaction Codes

TCODE Description Functional Area
ST22 ABAP Dump Analysis Basis - Syntax, Compiler, Runtime
SM37 Overview of job selection Basis - Background Processing
SM50 Work Process Overview Basis - Client/Server Technology
SM51 List of SAP Systems Basis - Client/Server Technology
SE38 ABAP Editor Basis - ABAP Editor

Tables for SAP Transaction Code SM21

TABLE Description Functional Area
DBCON Description of Database Connections Basis - DB-Independent Database Interface
LCINIT Control Table for liveCache Initialization (Application) Basis - liveCache
DBCONUSR SAP DB: Database Users Basis - liveCache
T100 Messages Basis - Activation Program, Conversion Program, DB Utility, MC, SPDD
CALLSTACK structure for abap callstack (do not use as include in dbtb) BC - SAP GUI for Windows Controls
RSJOBINFO ABAP: Information about job scheduling 40A - Syntax

Authorization Objects for SAP Transaction Code SM21

AUTHORIZATION OBJECT Description Functional Area
S_RFC Authorization Check for RFC Access
S_ADMI_FCD System Authorizations
S_DATASET Authorization for file access
S_TCODE Transaction Code Check at Transaction Start
WLM Assignment of Articles to Layout Modules
S_BTCH_JOB Background Processing: Operations on Background Jobs

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