How To Fix CNV20600191 - Old value &1, new value &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20600 - message class for package 20600

• Message number: 191

• Message text: Old value &1, new value &2

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 CNV20600191 - Old value &1, new value &2 ?

  The SAP error message CNV20600191 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is a conflict between an old value and a new value during the data transformation process. 
  Cause:
  The error message CNV20600191 is triggered when the system detects that a value being processed has changed from an old value (&1) to a new value (&2) in a way that is not acceptable or expected. This can happen due to several reasons, including:
  
  Data Inconsistency: The source data may have inconsistencies or invalid entries that do not match the expected format or constraints in the target system.
  Mapping Issues: There may be issues with the mapping rules defined for the data migration, leading to incorrect transformations.
  Business Logic Violations: The new value may violate business rules or constraints defined in the target system.
  Configuration Errors: Incorrect configuration settings in the migration tool or the target system can lead to this error.
  
  Solution:
  To resolve the CNV20600191 error, you can take the following steps:
  
  
  Review the Data: Check the source data for inconsistencies or invalid entries that may be causing the conflict. Ensure that the old and new values are valid and conform to the expected formats.
  
  
  Check Mapping Rules: Review the mapping rules defined in the migration tool. Ensure that the transformation logic is correctly defined and that it aligns with the business requirements.
  
  
  Validate Business Rules: Ensure that the new value being assigned does not violate any business rules or constraints in the target system. If necessary, adjust the data or the mapping to comply with these rules.
  
  
  Consult Logs: Look at the detailed logs generated during the migration process. These logs can provide more context about the specific records causing the error and help identify the root cause.
  
  
  Test in a Sandbox: If possible, replicate the migration process in a sandbox environment to test different scenarios and identify the cause of the error without affecting production data.
  
  
  Seek Help from SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP Support for assistance. They may provide insights or patches that can help resolve the issue.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on data migration issues.
  Documentation: Review the official SAP documentation for the migration tool you are using, as it may contain troubleshooting tips and best practices.
  Community Forums: Engage with the SAP community forums or user groups, where other users may have encountered similar issues and can share their solutions.
  
  By following these steps, you should be able to identify and resolve the CNV20600191 error effectively.