How To Fix CNV_PE_GEN128 - Exporting parameter of TRule &1 is not defined for TRFM parameter &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE_GEN - Messages for object generation

• Message number: 128

• Message text: Exporting parameter of TRule &1 is not defined for TRFM parameter &2

What causes this issue?

Transformation rule &V1& (ID &V3&) has more than one exporting
parameter. Information about which transformation rule exporting
parameter should be mapped to transfer method parameter &V2& (ID &V4&)
is missing.

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?

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_GEN128 - Exporting parameter of TRule &1 is not defined for TRFM parameter &2 ?

  The SAP error message CNV_PE_GEN128 indicates that there is an issue with the export parameters of a transformation rule (TRule) in the context of a transformation framework (TRFM). Specifically, it suggests that an exporting parameter for a specified transformation rule is not defined for the given transformation framework parameter.
  Cause:
  
  Missing Parameter Definition: The exporting parameter for the transformation rule is not defined in the transformation framework. This could happen if the transformation rule was not properly configured or if there was a change in the transformation framework that was not reflected in the rule.
  Incorrect Mapping: There may be a mismatch between the parameters defined in the transformation rule and those expected by the transformation framework.
  Configuration Issues: The transformation framework or the rules may not have been set up correctly, leading to missing or incorrect parameter definitions.
  
  Solution:
  
  Check Parameter Definitions: Review the transformation rule (TRule) and ensure that all exporting parameters are correctly defined. You can do this by navigating to the relevant transaction in SAP (e.g., using transaction codes like SE80 or SE11).
  Update Transformation Rules: If you find that parameters are missing, you may need to update the transformation rules to include the necessary exporting parameters.
  Validate Mapping: Ensure that the mapping between the transformation rule and the transformation framework is correct. This may involve checking the configuration settings and ensuring that they align with the expected parameters.
  Consult Documentation: Refer to the SAP documentation or notes related to the specific transformation framework you are using. There may be specific guidelines or updates that address this issue.
  Testing: After making changes, test the transformation to ensure that the error is resolved and that the transformation works as expected.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or fixes related to this error message.
  Transaction Codes: Familiarize yourself with transaction codes related to data transformation and migration, such as LTMC (Legacy Transfer Migration Cockpit) or LTMOM (Migration Object Modeler).
  Community Forums: Consider searching or posting in SAP community forums or SAP support channels for additional help from other users who may have encountered similar issues.
  
  If the problem persists after following these steps, it may be beneficial to engage with SAP support for more in-depth troubleshooting.