How To Fix CNV_NCE_BAS401 - Error & occurred while trying to free memory

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 401

• Message text: Error & occurred while trying to free 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_NCE_BAS401 - Error & occurred while trying to free memory ?

  The SAP error message CNV_NCE_BAS401 typically indicates that there is an issue related to memory allocation during a data conversion or migration process. This error can occur in various scenarios, particularly when using SAP's data migration tools or during system upgrades.
  Causes:
  
  Insufficient Memory: The most common cause is that the system does not have enough memory allocated to handle the data processing task.
  Large Data Volume: If you are trying to process a large volume of data, it may exceed the available memory limits.
  Configuration Issues: Incorrect configuration settings in the SAP system can lead to memory allocation problems.
  Background Job Limitations: If the process is running as a background job, it may be limited by the job's memory settings.
  
  Solutions:
  
  
  Increase Memory Allocation:
  
  Check and increase the memory settings in the SAP system. This can be done by adjusting the instance profile parameters, such as abap/heap_area_dia and abap/heap_area_nondia.
  You may also want to increase the rdisp/PG_MAXFS parameter to allow for larger memory allocation.
  
  
  
  Optimize Data Processing:
  
  If possible, break down the data processing into smaller batches to reduce memory consumption.
  Review the data being processed to ensure that it is necessary and that there are no redundant records.
  
  
  
  Check Background Job Settings:
  
  If the error occurs during a background job, check the job's memory settings and increase them if necessary.
  Ensure that the job is not limited by the user profile settings.
  
  
  
  Monitor System Performance:
  
  Use transaction codes like ST02 (Tune Summary) and ST03 (Workload Analysis) to monitor memory usage and identify any bottlenecks.
  Analyze the system logs for any additional errors or warnings that may provide more context.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide patches and updates.
  
  
  
  System Restart:
  
  In some cases, restarting the SAP system can help clear memory issues and free up resources.
  
  
  
  Related Information:
  
  Transaction Codes: Use transaction codes like ST22 (Dump Analysis) to analyze any short dumps that may provide more details about the error.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if you have a support contract.
  
  By following these steps, you should be able to diagnose and resolve the CNV_NCE_BAS401 error effectively.