CNV302 - For table &1, time step &2, the step parameter &3 does not exist.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 302

• Message text: For table &1, time step &2, the step parameter &3 does not exist.

What causes this issue?

Field &V3& of table &V1& is used as step parameter for the form routine
&V4&.
Table &V1& does not contain field &V3& .

How to fix this error?

Change the parameter &V3& of the form routine &V4&.

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.

AnswerBot

• What is the cause and solution for SAP error message CNV302 - For table &1, time step &2, the step parameter &3 does not exist. ?

  The SAP error message CNV302 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there is a mismatch or an issue with the parameters defined for a specific time step in the migration process.
  Cause:
  
  
  Missing Step Parameter: The error suggests that the specified step parameter (&3) does not exist for the given time step (&2) in the context of the table (&1). This could be due to:
  
  Incorrect configuration or setup of the migration project.
  Changes in the migration structure that have not been reflected in the configuration.
  A missing or incorrectly defined mapping for the data being migrated.
  
  
  
  Data Model Changes: If there have been changes in the data model or the migration structure, it may lead to parameters that were previously valid becoming obsolete or incorrectly referenced.
  
  
  Version Compatibility: If you are using a version of the migration tool that is not compatible with the source or target system, it may lead to such errors.
  
  
  Solution:
  
  
  Check Configuration: Review the migration project configuration to ensure that all required parameters for the specified time step are correctly defined. Make sure that the step parameter exists and is correctly mapped.
  
  
  Update Migration Structure: If there have been changes in the data model, update the migration structure accordingly. Ensure that all necessary mappings and parameters are in place.
  
  
  Consult Documentation: Refer to the official SAP documentation for the migration tool you are using. This can provide insights into the expected parameters and configurations.
  
  
  Debugging: If you have access to debugging tools, you can trace the execution of the migration process to identify where the error is occurring and why the parameter is not found.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that resolve known issues.
  
  
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including the context in which it occurs.
  
  
  Related Information:
  
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its configuration settings.
  Data Migration Best Practices: Review best practices for data migration to ensure a smooth process.
  Error Logs: Check the error logs for additional details that may help in diagnosing the issue.
  
  By following these steps, you should be able to identify the cause of the CNV302 error and implement a solution to resolve it.