How To Fix CNV664 - Total net runtime of the conversion (during system lock): &

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 664

• Message text: Total net runtime of the conversion (during system lock): &

What causes this issue?

The total net runtime of the conversion activities (including phases
during the system lock): &V1&.
The included phases are:
Preprocessing programs DURING system lock
Conversion
Postprocessing programs

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

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV664 - Total net runtime of the conversion (during system lock): & ?

  The SAP error message CNV664 typically relates to issues encountered during data conversion processes, particularly in the context of system migrations or data transformations. This error message indicates that there is a problem with the total net runtime of the conversion process while the system is locked.
  Cause:
  
  System Lock: The error often occurs when the system is locked for maintenance or migration activities, and the conversion process is unable to proceed as expected.
  Performance Issues: If the conversion process takes longer than anticipated, it may trigger this error, especially if there are resource constraints or if the system is under heavy load.
  Configuration Issues: Incorrect configuration settings for the conversion process can lead to unexpected behavior and errors.
  Data Volume: Large volumes of data being processed can also contribute to this error, especially if the system is not optimized for such operations.
  
  Solution:
  
  Check System Lock Status: Ensure that the system is not locked for maintenance or other activities. If it is, wait until the lock is released before attempting the conversion again.
  Monitor Performance: Use transaction codes like ST03N or ST04 to monitor system performance and identify any bottlenecks. Ensure that the system has adequate resources (CPU, memory, etc.) to handle the conversion process.
  Review Configuration: Check the configuration settings related to the conversion process. Ensure that they are set correctly and optimized for your specific scenario.
  Optimize Data Volume: If possible, break down the data conversion into smaller batches to reduce the load on the system and avoid timeouts.
  Check Logs: Review the logs for any additional error messages or warnings that may provide more context about the issue. This can help in diagnosing the root cause.
  Consult SAP Notes: Look for relevant SAP Notes or documentation that may address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  
  Related Information:
  
  SAP Notes: Search for SAP Notes related to CNV664 for any specific patches or updates that may resolve the issue.
  Transaction Codes: Familiarize yourself with transaction codes like ST22 (Dump Analysis) and SM21 (System Log) to gather more information about the error context.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.