How To Fix MO420 - SM 31 table maintenance exists for table &

SAP Error Message - Details

• Message type: E = Error

• Message class: MO - Modeling and Prototyping

• Message number: 420

• Message text: SM 31 table maintenance exists for table &

What causes this issue?

SM31 table maintenance can be used for table &.

System Response

You cannot edit these tables in general table display.
You can only display the table in the Data Browser.

How to fix this error?

Use Transaction SM31 to edit the table.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MO420 - SM 31 table maintenance exists for table & ?

  The SAP error message "MO420 SM 31 table maintenance exists for table &" typically indicates that there is an issue related to the maintenance of a specific table in the SAP system. This error can occur when you attempt to access or modify a table that has table maintenance views defined, and the system is preventing you from doing so due to existing maintenance settings.
  Cause:
  
  Table Maintenance View Exists: The error usually arises when there is a table maintenance view (SM30/SM31) defined for the specified table. This means that the table is intended to be maintained through a specific maintenance transaction rather than directly through the data dictionary.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access the table directly.
  System Configuration: The system may be configured to restrict direct access to certain tables to ensure data integrity and consistency.
  
  Solution:
  
  Use the Maintenance View: Instead of trying to access the table directly, use the appropriate transaction code (like SM30 or SM31) to access the maintenance view for the table. This is the recommended way to maintain data in tables that have maintenance views defined.
  Check Authorizations: Ensure that you have the necessary authorizations to access the maintenance view. If you do not have the required permissions, contact your SAP security administrator to grant you the necessary access.
  Review Table Maintenance Settings: If you believe that the table should not have a maintenance view, you can review the table maintenance settings in the Data Dictionary (SE11) and make changes if necessary. However, this should be done with caution and typically requires a developer or administrator with the appropriate knowledge.
  Consult Documentation: Check the SAP documentation or help resources for more information on the specific table and its maintenance requirements.
  
  Related Information:
  
  Transaction Codes: 
  
  SE11: Data Dictionary - to view and modify table definitions.
  SM30/SM31: Table Maintenance - to maintain data in tables with defined maintenance views.
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the error message.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP Basis or development team for further investigation.