How To Fix CNV_40305027 - Value of &1 changed for key &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_40305 - Asset transfer postings due to a change of account determ.

• Message number: 027

• Message text: Value of &1 changed for key &2

What causes this issue?

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

System Response

For key &V2& value of field &V1& changed from &V3& to &V4& after the
mapping phase. This might have impact on the conversion.

How to fix this error?

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_40305027 - Value of &1 changed for key &2 ?

  The SAP error message CNV_40305027 typically occurs during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the execution of a conversion program. This error indicates that the value of a specific field (denoted by &1) has changed for a particular key (denoted by &2). This can happen for various reasons, such as data inconsistencies, incorrect mapping, or issues with the source data.
  Causes:
  
  Data Inconsistency: The value for the specified key in the source data does not match the expected value in the target system.
  Mapping Issues: There may be a problem with how the data is being mapped from the source to the target system.
  Duplicate Keys: If there are duplicate entries for the same key in the source data, it can lead to conflicts during the migration process.
  Data Transformation Errors: Errors in the transformation logic that alters the data during migration can lead to unexpected changes in values.
  
  Solutions:
  
  Check Source Data: Review the source data for inconsistencies or errors. Ensure that the values for the specified key are correct and consistent.
  Review Mapping Configuration: Verify the mapping configuration in the migration tool. Ensure that the fields are correctly mapped and that there are no discrepancies.
  Data Cleansing: Perform data cleansing on the source data to remove duplicates or correct any inconsistencies before migration.
  Debugging: If you have access to the migration program's code, consider debugging it to identify where the value change is occurring.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool you are using for any known issues or additional troubleshooting steps.
  Engage SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may want to check transaction codes related to data migration, such as LSMW (Legacy System Migration Workbench) or other specific migration tools.
  SAP Notes: Search for relevant SAP Notes that may address this specific error or provide guidance on data migration issues.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.