How To Fix CRM_MKTHV_PF020 - Segmentation model could not be stored in shared memory

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 020

• Message text: Segmentation model could not be stored in shared memory

What causes this issue?

The segmentation model could not be stored in the shared memory buffer.

System Response

Storing the segmentation model data in the shared memory is a
prerequisite to calculate the distribution in the background.
The distribution is calculated in the same session. Further user
interactions are processed after the distribution calculation has
finished.

How to fix this error?

Please wait until the distribution calculation has finished.

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_PF020 - Segmentation model could not be stored in shared memory ?

  The SAP error message CRM_MKTHV_PF020 indicates that a segmentation model could not be stored in shared memory. This error typically arises in the context of SAP Customer Relationship Management (CRM) when there are issues related to memory allocation or configuration.
  Causes:
  
  Insufficient Shared Memory: The most common cause is that the shared memory allocated for the SAP system is insufficient to store the segmentation model.
  Configuration Issues: Incorrect configuration settings in the SAP system can lead to problems with memory allocation.
  System Limits: The system may have reached its limits for shared memory usage, which can happen if there are many segmentation models or if the models are particularly large.
  Database Issues: Problems with the underlying database or its configuration can also lead to this error.
  
  Solutions:
  
  
  Increase Shared Memory Allocation:
  
  You can increase the shared memory allocation in the SAP system. This is typically done by adjusting the parameters in the instance profile (e.g., shmmax, shmmin, shmall for Unix/Linux systems).
  Use transaction code RZ10 to modify the instance profile and then restart the SAP instance for the changes to take effect.
  
  
  
  Check and Optimize Segmentation Models:
  
  Review the segmentation models to see if they can be optimized or if unnecessary models can be deleted to free up memory.
  Ensure that the models are not overly complex or large, which can contribute to memory issues.
  
  
  
  Monitor Memory Usage:
  
  Use transaction SM50 or SM66 to monitor the memory usage of the SAP system and identify any processes that may be consuming excessive memory.
  Check for any long-running processes that may be holding onto memory unnecessarily.
  
  
  
  Database Configuration:
  
  Ensure that the database is properly configured and that there are no issues with its performance or memory allocation.
  Consult with your database administrator to check for any potential issues.
  
  
  
  SAP Notes and Support:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that can resolve the issue.
  If the problem persists, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like RZ10 (to change instance profile parameters), SM50 (to monitor processes), and SM66 (to monitor global processes).
  SAP Documentation: Review the official SAP documentation for guidelines on memory management and configuration best practices.
  System Logs: Check the system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to diagnose and resolve the CRM_MKTHV_PF020 error effectively.