How To Fix AXT_RUNTIME_MESSAGES031 - The shared memory for AET runtime handlers could not be invalidated

SAP Error Message - Details

• Message type: E = Error

• Message class: AXT_RUNTIME_MESSAGES - Extensibiltiy Runtime Messages

• Message number: 031

• Message text: The shared memory for AET runtime handlers could not be invalidated

What causes this issue?

In the system the shared memory for runtime handlers of the Application
Enhancement Tool is active to reduce memory consumption.
After the generation or the import of an enhancement the memory has to
be invalidated in order to reflect the changes. However it was not
possible to invalidate the area automatically.

System Response

How to fix this error?

Invalidate the shared memory area CL_AXT_SHARED_RUNTIME_HDL_AREA in
transaction SHMM manually.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AXT_RUNTIME_MESSAGES031 - The shared memory for AET runtime handlers could not be invalidated ?

  The SAP error message AXT_RUNTIME_MESSAGES031 indicates that there is an issue with the shared memory for AET (Application Enhancement Tool) runtime handlers. This error typically arises when the system is unable to invalidate or clear the shared memory segment that is used by AET.
  Causes:
  
  Memory Corruption: The shared memory segment may be corrupted or not properly initialized.
  Insufficient Permissions: The user or process may not have the necessary permissions to access or modify the shared memory.
  System Resource Limits: The system may have reached its limit for shared memory segments, preventing new segments from being created or existing ones from being modified.
  Configuration Issues: There may be misconfigurations in the SAP system related to memory management or AET settings.
  Concurrent Access: Multiple processes trying to access or modify the shared memory simultaneously can lead to conflicts.
  
  Solutions:
  
  Restart the Application Server: Sometimes, simply restarting the application server can clear the shared memory and resolve the issue.
  Check Memory Configuration: Review the SAP memory configuration settings (e.g., shmmax, shmall, etc.) to ensure they are set appropriately for your system's workload.
  Review User Permissions: Ensure that the user or process attempting to access the shared memory has the necessary permissions.
  Check for Locks: Use transaction codes like SM12 to check for any locks that might be preventing access to the shared memory.
  Clear Shared Memory: If you have access, you can manually clear the shared memory segments using appropriate SAP transactions or operating system commands.
  Update SAP Kernel: Ensure that you are using the latest version of the SAP kernel, as updates may contain fixes for known issues related to shared memory.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SM37 (to check job logs), SM21 (to check system logs), and ST22 (to check dumps) for further investigation.
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed logs and system information.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the AET runtime handlers and the shared memory error.