/INCMD/MSG404 - Inconsistencies in shared memory

SAP Error Message - Details

• Message type: E = Error

• Message class: /INCMD/MSG -

• Message number: 404

• Message text: Inconsistencies in shared memory

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

AnswerBot

• What is the cause and solution for SAP error message /INCMD/MSG404 - Inconsistencies in shared memory ?

  The SAP error message /INCMD/MSG404 Inconsistencies in shared memory typically indicates that there are inconsistencies or issues with the shared memory segments used by the SAP system. This can occur due to various reasons, such as improper shutdowns, memory corruption, or issues during system updates.
  Causes:
  
  Improper Shutdown: If the SAP system was not shut down properly, it may leave shared memory segments in an inconsistent state.
  Memory Corruption: Issues in the underlying operating system or hardware can lead to memory corruption.
  System Updates: Inconsistencies can arise during or after system updates or upgrades if the shared memory segments are not properly managed.
  Configuration Issues: Incorrect configuration settings related to shared memory can also lead to inconsistencies.
  
  Solutions:
  
  Restart the SAP System: Often, a simple restart of the SAP system can resolve temporary inconsistencies in shared memory.
  Check Shared Memory Segments: Use transaction code SM12 to check for any locks that may be causing issues. You can also use SM21 to check the system log for any related errors.
  Clear Shared Memory: If the problem persists, you may need to clear the shared memory segments. This can be done using the RSPFPAR report to reset the shared memory.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as these may contain fixes for known issues.
  Review Configuration: Check the configuration settings related to shared memory in the instance profile and ensure they are set correctly.
  Consult SAP Notes: Look for relevant SAP Notes in the SAP Support Portal that may address this specific error message. There may be specific patches or recommendations provided by SAP.
  
  Related Information:
  
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  System Logs: Always check the system logs (SM21) for any additional error messages or warnings that may provide more context about the issue.
  Documentation: Review the SAP documentation related to memory management and troubleshooting shared memory issues for more detailed guidance.
  
  Preventive Measures:
  
  Regularly monitor the system for any signs of memory issues.
  Implement proper shutdown procedures to avoid leaving shared memory in an inconsistent state.
  Keep the system updated with the latest patches and fixes from SAP.
  
  By following these steps, you should be able to address the /INCMD/MSG404 Inconsistencies in shared memory error effectively.