How To Fix MX028 - Multiplexing information on table & could not be written

SAP Error Message - Details

• Message type: E = Error

• Message class: MX - Table Multiplexing and Conversion Programs for UPG

• Message number: 028

• Message text: Multiplexing information on table & could not be written

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MX028 - Multiplexing information on table & could not be written ?

  The SAP error message MX028, which states "Multiplexing information on table & could not be written," typically occurs in the context of database operations, particularly when dealing with the SAP MaxDB or other database systems that support multiplexing. This error indicates that there was an issue writing multiplexing information for a specific table, which can be caused by various factors.
  Causes:
  
  Database Locking Issues: The table may be locked by another transaction, preventing the current operation from writing the necessary multiplexing information.
  Insufficient Permissions: The user executing the operation may not have the necessary permissions to write to the table or the database.
  Database Corruption: There may be corruption in the database that is preventing the proper writing of multiplexing information.
  Configuration Issues: Incorrect configuration settings in the database or SAP system can lead to this error.
  Resource Limitations: Insufficient system resources (like memory or disk space) can also cause this error.
  
  Solutions:
  
  Check for Locks: Use transaction codes like SM12 to check for any locks on the table. If there are locks, you may need to wait for the locks to be released or resolve them if they are stale.
  Review User Permissions: Ensure that the user has the necessary permissions to perform the operation. You may need to adjust roles or authorizations.
  Database Consistency Check: Run a consistency check on the database to identify and fix any corruption issues. This may involve using tools provided by the database system.
  Configuration Review: Review the database and SAP configuration settings to ensure they are set up correctly for multiplexing.
  Monitor System Resources: Check system resources to ensure that there is enough memory and disk space available. If resources are low, consider optimizing the system or upgrading hardware.
  Consult Logs: Check the database and SAP logs for more detailed error messages that can provide additional context for the issue.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Database Documentation: Refer to the documentation for the specific database you are using (e.g., MaxDB, HANA) for more information on multiplexing and related configurations.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your database administrator or SAP support for further assistance.