How To Fix CNV_PE648 - Cast error occurred after call of TRule &1 for parameter &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 648

• Message text: Cast error occurred after call of TRule &1 for parameter &2

What causes this issue?

A cast error occurred after having called transformation rule &V1& of
repository &V4& (ID: &V3&) for transfer method parameter &V2&.

System Response

Error

How to fix this error?

Contact SAP for support.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE648 - Cast error occurred after call of TRule &1 for parameter &2 ?

  The SAP error message "CNV_PE648 Cast error occurred after call of TRule &1 for parameter &2" typically occurs during data migration or transformation processes, particularly when using the SAP Data Migration Cockpit or similar tools. This error indicates that there was a type mismatch or casting issue when trying to process a specific transformation rule (TRule) for a given parameter.
  Cause:
  
  
  Data Type Mismatch: The most common cause of this error is that the data being processed does not match the expected data type defined in the transformation rule. For example, if a rule expects a numeric value but receives a string or null value, a cast error will occur.
  
  
  Invalid Data: The data being migrated may contain invalid or unexpected values that cannot be converted to the required format.
  
  
  Configuration Issues: There may be issues with the configuration of the transformation rules themselves, such as incorrect mappings or logic that leads to casting errors.
  
  
  Solution:
  
  
  Check Transformation Rules: Review the transformation rules (TRule) specified in the error message. Ensure that the data types expected by the rules match the actual data types of the source data.
  
  
  Data Validation: Validate the source data to ensure that it conforms to the expected formats. Look for any anomalies or unexpected values that could cause casting issues.
  
  
  Modify Data Types: If necessary, modify the data types in the source data or adjust the transformation rules to handle the data correctly.
  
  
  Error Handling: Implement error handling in your transformation logic to catch and log any casting errors, which can help in diagnosing the issue.
  
  
  Testing: After making changes, perform thorough testing with a subset of data to ensure that the issue is resolved before running the full migration.
  
  
  Related Information:
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific version of the Data Migration Cockpit or the transformation rules you are using.
  
  
  Documentation: Refer to the official SAP documentation for guidelines on data migration and transformation rules to ensure compliance with best practices.
  
  
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, providing insights or solutions from other users.
  
  
  By addressing the underlying causes of the casting error and ensuring that the data and transformation rules are aligned, you can resolve the CNV_PE648 error effectively.