How To Fix MQ039 - Data records read: &; data records changed: &

SAP Error Message - Details

• Message type: E = Error

• Message class: MQ - Messages for Euro Changeover Package

• Message number: 039

• Message text: Data records read: &; data records changed: &

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 MQ039 - Data records read: &; data records changed: & ?

  The SAP error message MQ039 typically indicates that there is a discrepancy between the number of data records read and the number of data records that have been changed during a data processing operation, such as during a data upload or batch processing. This message is often encountered in the context of data transfer processes, such as those involving IDocs, BAPIs, or batch input sessions.
  Cause:
  
  Data Integrity Issues: The records being processed may have been modified or deleted by another process while the current process was running.
  Validation Errors: Some records may not meet the required validation criteria, leading to them being skipped or not processed correctly.
  Concurrency Issues: If multiple users or processes are trying to access and modify the same data simultaneously, it can lead to inconsistencies.
  Configuration Issues: Incorrect configuration in the data transfer settings or mapping can lead to unexpected results.
  
  Solution:
  
  Check Data Consistency: Review the data records being processed to ensure they are consistent and valid. Look for any records that may have been changed or deleted.
  Review Logs: Check the application logs or error logs for more detailed information about which records were read and which were changed. This can provide insights into what went wrong.
  Reprocess Data: If the issue is due to temporary inconsistencies, you may need to reprocess the data after ensuring that the underlying data is stable.
  Adjust Concurrency Settings: If concurrency issues are suspected, consider implementing locking mechanisms or adjusting the settings to prevent simultaneous access to the same records.
  Consult Documentation: Review SAP documentation or notes related to the specific transaction or process you are working with for any known issues or additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using transaction codes like SM37 (for job monitoring), WE02 (for IDoc monitoring), or others relevant to your data processing.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific version of SAP you are using.
  Support: If the issue persists, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  By following these steps, you should be able to identify the root cause of the MQ039 error and implement a suitable solution.