How To Fix CNV_PE458 - Receiver is already blocked - no action required

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 458

• Message text: Receiver is already blocked - no action required

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE458 - Receiver is already blocked - no action required ?

  The SAP error message CNV_PE458: Receiver is already blocked - no action required typically occurs during data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or other data migration tools. This message indicates that the system has detected that the receiver (target) for the data being processed is already in a blocked state, and therefore, no further action is necessary.
  Cause:
  
  Data Locking: The receiver might be locked due to ongoing processes or transactions that are preventing new data from being written to it.
  Previous Errors: There may have been previous errors in the data migration process that caused the receiver to be blocked.
  Configuration Issues: Incorrect configuration settings in the data migration tool or the target system can lead to blocking scenarios.
  Concurrency Control: If multiple processes are trying to access the same receiver simultaneously, it may lead to a blocking situation.
  
  Solution:
  
  Check Lock Status: Use transaction codes like SM12 to check for any locks on the receiver. If you find locks that are no longer needed, you can release them.
  Review Logs: Check the logs of the data migration process for any errors or warnings that might indicate why the receiver is blocked.
  Restart the Process: If the blocking issue is resolved, you may need to restart the data migration process to continue.
  Configuration Review: Ensure that the configuration settings for the data migration tool are correct and that there are no conflicts.
  System Performance: Monitor system performance to ensure that there are no resource constraints that could lead to blocking issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to view and manage locks), SLG1 (to view application logs), and ST22 (to check for dumps).
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for the data migration tool you are using, as it may provide insights into common issues and their resolutions.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.