How To Fix CNV_PE_CHECK_V2079 - Trans. opt. &1, step &2, rule &3: Target values update allowed only once

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE_CHECK_V2 - Check Messages (Version 2020)

• Message number: 079

• Message text: Trans. opt. &1, step &2, rule &3: Target values update allowed only once

What causes this issue?

Target values update is set more than one time for the encapsulating
rule &V3& (different mapping value rules). This configuration is <ZH>not
</> allowed.

System Response

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

How to fix this error?

Set target value update option for one mapping value rule encapsulated
in rule &V3& and remove this option for other mapping value rules.

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 CNV_PE_CHECK_V2079 - Trans. opt. &1, step &2, rule &3: Target values update allowed only once ?

  The SAP error message CNV_PE_CHECK_V2079 typically occurs during data migration or transformation processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the target values for a specific operation can only be updated once, and any attempt to update them again will trigger this error.
  Cause:
  The error is caused by the following scenarios:
  
  Multiple Updates: The target values for a specific transformation step have already been updated, and the system does not allow further updates to prevent data inconsistency.
  Incorrect Configuration: The configuration of the migration or transformation process may not be set up correctly, leading to attempts to update the same target values multiple times.
  Data Integrity Rules: The underlying data integrity rules in the SAP system may restrict multiple updates to ensure that the data remains consistent and reliable.
  
  Solution:
  To resolve the CNV_PE_CHECK_V2079 error, consider the following steps:
  
  
  Review the Migration Process: Check the migration or transformation process to ensure that you are not attempting to update the same target values multiple times. If you need to make changes, ensure that they are done in a single update operation.
  
  
  Check Configuration Settings: Verify the configuration settings for the migration or transformation process. Ensure that the rules and mappings are correctly defined and that they allow for the intended updates.
  
  
  Data Validation: Validate the data being processed to ensure that it meets the requirements for the target values. If there are discrepancies, correct them before attempting the migration again.
  
  
  Consult Documentation: Refer to the SAP documentation related to the specific migration tool or process you are using. There may be specific guidelines or best practices that can help you avoid this error.
  
  
  Log Analysis: Check the logs for more detailed information about the error. This can provide insights into which specific step or rule is causing the issue.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP Support for assistance. They can provide more detailed guidance based on your specific scenario.
  
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for data migration.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can share their solutions.
  
  By following these steps, you should be able to identify the cause of the CNV_PE_CHECK_V2079 error and implement a solution to resolve it.