How To Fix CRM_MKTHV_PF021 - Segmentation model could not be read from shared memory

SAP Error Message - Details

• Message type: E = Error

• Message class: CRM_MKTHV_PF - Message class for high volume segmentation

• Message number: 021

• Message text: Segmentation model could not be read from shared memory

What causes this issue?

The distribution calculation was called in a background process. The
background process was unable to read the segmentation model data that
was buffered in the shared memory.

System Response

The distribution calculation is executed on the segmentation model data
stored in the database. Unsaved changes from the current model will not
be taken into account during the calculation.
If the distribution calculation uses a reference segment that has not
yet been persisted in the database, the calculation might be aborted
with an error message.

How to fix this error?

If the problem can be reproduced, get in contact with the system
administrator to analyze the reason for the shared memory error.

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 CRM_MKTHV_PF021 - Segmentation model could not be read from shared memory ?

  The SAP error message CRM_MKTHV_PF021 indicates that the segmentation model could not be read from shared memory. This error typically occurs in the context of SAP Customer Relationship Management (CRM) when the system is unable to access the required segmentation model data, which is often stored in shared memory for performance reasons.
  Causes:
  
  Shared Memory Issues: The segmentation model may not be loaded into shared memory, or there may be issues with the shared memory allocation.
  Segmentation Model Not Active: The segmentation model you are trying to access may not be active or properly configured.
  System Configuration: There may be configuration issues in the SAP system that prevent the segmentation model from being accessed.
  Memory Limitations: The system may have reached its limit for shared memory allocation, causing it to fail to load the segmentation model.
  Transport Issues: If the segmentation model was recently transported from another system, it may not have been properly activated or configured.
  
  Solutions:
  
  
  Check Shared Memory Settings:
  
  Use transaction code RZ10 to check the profile parameters related to shared memory. Ensure that the parameters are set correctly and that the system has enough memory allocated.
  You may need to increase the shared memory size if it is insufficient.
  
  
  
  Activate Segmentation Model:
  
  Go to the segmentation model configuration in the CRM system and ensure that the model is active. You can check this in transaction CRMD_ORDER or CRMD_ORDERADM_H.
  
  
  
  Reinitialize Segmentation:
  
  You can try to reinitialize the segmentation model. This can often be done through transaction CRMD_ORDER or by using specific reports designed to refresh segmentation data.
  
  
  
  Check for Errors in Logs:
  
  Review the system logs (transaction SM21) and the application logs (transaction SLG1) for any related error messages that might provide more context on the issue.
  
  
  
  Restart the Application Server:
  
  If the issue persists, consider restarting the application server. This can help clear any temporary issues with shared memory.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. There may be patches or updates available that resolve known issues.
  
  
  
  Contact SAP Support:
  
  If none of the above solutions work, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error and the steps you have already taken.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CRMD_ORDER, RZ10, SM21, and SLG1 for troubleshooting.
  Documentation: Review SAP documentation related to segmentation models and shared memory management for more in-depth understanding.
  System Performance: Monitor system performance and memory usage to prevent similar issues in the future.
  
  By following these steps, you should be able to diagnose and resolve the CRM_MKTHV_PF021 error effectively.