How To Fix CNV_20340018 - Mapping values for cycles (controlling area) changed

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20340 - Messages for cycle conversion

• Message number: 018

• Message text: Mapping values for cycles (controlling area) changed

What causes this issue?

The mapping values for cycles (controlling area) were changed in the
control system and in the execution system.

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?

In the activity <ZK>Specify Mapping Values </>, check the mapping values
for cycles (controlling area), and adjust them if required.

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_20340018 - Mapping values for cycles (controlling area) changed ?

  The SAP error message CNV_20340018 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 an inconsistency in the mapping of values for cycles within a controlling area. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause
  
  Inconsistent Mapping: The error arises when the mapping of cycles (which are part of the controlling area in SAP) has been altered or is inconsistent. This can happen if the source data has been modified or if there are discrepancies between the source and target systems.
  Data Integrity Issues: If the data being migrated does not adhere to the expected structure or if there are missing values, this can trigger the error.
  Configuration Changes: Changes in the configuration of the controlling area or cycles in the target system that do not match the source system can also lead to this error.
  
  Solution
  
  Review Mapping Configuration: Check the mapping configuration for cycles in the controlling area. Ensure that the values are correctly mapped and consistent between the source and target systems.
  Data Validation: Validate the source data to ensure that it meets the requirements for the target system. Look for any missing or incorrect values that could cause inconsistencies.
  Adjust Configuration: If there have been changes in the controlling area configuration, ensure that these changes are reflected in the mapping process. You may need to adjust the configuration in the target system to align with the source data.
  Re-run the Migration: After making the necessary adjustments, re-run the migration process to see if the error persists.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool you are using for any additional troubleshooting steps or known issues.
  
  Related Information
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling mapping issues during migration.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its functionalities, as it provides tools for mapping and transforming data during migration.
  Data Migration Best Practices: Review best practices for data migration in SAP, including data cleansing, validation, and testing procedures to minimize errors during the migration process.
  
  If the issue persists after following these steps, it may be beneficial to engage with SAP support or consult with a professional who specializes in SAP migrations for further assistance.