How To Fix CNV20551508 - Predecessor program & in phase Y was not completed correctly

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20551 - message for package 20551 (company code delete)

• Message number: 508

• Message text: Predecessor program & in phase Y was not completed correctly

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 CNV20551508 - Predecessor program & in phase Y was not completed correctly ?

  The SAP error message CNV20551508 indicates that a predecessor program in a specific phase (in this case, phase Y) did not complete successfully. This error typically arises during data migration or conversion processes, particularly when using SAP's Conversion Tools or during system upgrades.
  Cause:
  
  
  Incomplete Execution: The predecessor program that was supposed to run before the current phase did not finish successfully. This could be due to various reasons such as:
  
  Errors in the data being processed.
  Configuration issues.
  Missing authorizations or permissions.
  System resource limitations (e.g., memory, processing power).
  Incorrect settings or parameters in the migration program.
  
  
  
  Data Integrity Issues: If the data being migrated has integrity issues (e.g., missing references, invalid formats), it can cause the predecessor program to fail.
  
  
  Custom Code or Enhancements: If there are custom developments or enhancements in the system, they might interfere with the standard migration processes.
  
  
  Solution:
  
  
  Check Logs: Review the logs of the predecessor program to identify the specific error that caused it to fail. This can provide insights into what went wrong.
  
  
  Correct Errors: Based on the log information, correct any identified issues. This may involve:
  
  Fixing data integrity problems.
  Adjusting configurations or parameters.
  Ensuring that all necessary authorizations are in place.
  
  
  
  Re-run the Predecessor Program: After addressing the issues, re-run the predecessor program to ensure it completes successfully.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration or conversion process you are executing. There may be known issues or additional steps required.
  
  
  SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP Support for assistance. Provide them with the error message, logs, and any relevant details about your system and the migration process.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide guidance on the migration process.
  Transaction Codes: Familiarize yourself with transaction codes related to data migration (e.g., LTMC for Migration Cockpit, LSMW for Legacy System Migration Workbench).
  Testing: Always perform thorough testing in a development or quality assurance environment before executing migration processes in production.
  
  By following these steps, you should be able to diagnose and resolve the CNV20551508 error effectively.