How To Fix CNV_PE_CHECK_V2121 - Trans. opt. &1, step &2, par. &3: Rule par. &4 is not assigned

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE_CHECK_V2 - Check Messages (Version 2020)

• Message number: 121

• Message text: Trans. opt. &1, step &2, par. &3: Rule par. &4 is not assigned

What causes this issue?

Transfer step parameter &V3& shall be filled using a rule.
<ZH>No</> assignment for an importing parameter &V4& of this rule
exists.

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?

Make required assignment for the rule parameter &V4&.

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_CHECK_V2121 - Trans. opt. &1, step &2, par. &3: Rule par. &4 is not assigned ?

  The SAP error message CNV_PE_CHECK_V2121 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 a specific rule parameter is not assigned, which can lead to issues in the data transformation or mapping process.
  Cause:
  The error message can arise due to several reasons:
  
  Missing Configuration: The rule parameter specified in the error message is not configured or assigned in the migration settings.
  Incorrect Mapping: There may be an issue with the mapping of fields or parameters in the migration project.
  Data Quality Issues: The source data may not meet the expected format or requirements, leading to the inability to assign the necessary parameters.
  Inconsistent Data: The data being migrated may have inconsistencies that prevent the proper assignment of the rule parameters.
  
  Solution:
  To resolve the CNV_PE_CHECK_V2121 error, you can follow these steps:
  
  
  Check Migration Settings:
  
  Go to the migration project and review the settings for the specific transaction operation and step mentioned in the error message.
  Ensure that all required rule parameters are correctly assigned.
  
  
  
  Review Mapping Rules:
  
  Check the mapping rules for the data being migrated. Ensure that all necessary fields are mapped correctly and that there are no missing parameters.
  
  
  
  Validate Source Data:
  
  Examine the source data for any inconsistencies or formatting issues. Cleanse the data if necessary to ensure it meets the requirements for migration.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or migration guides related to the specific migration scenario you are working on. This can provide insights into required configurations and common pitfalls.
  
  
  
  Use Transaction Codes:
  
  Utilize transaction codes like LTMC (for Migration Cockpit) or LTMOM (for Migration Object Modeler) to check the status of your migration objects and parameters.
  
  
  
  Seek Support:
  
  If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance based on your specific scenario.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its functionalities, as it is a common tool used for data migration.
  Data Migration Best Practices: Review best practices for data migration in SAP to ensure a smooth process and minimize errors.
  
  By following these steps, you should be able to identify the root cause of the CNV_PE_CHECK_V2121 error and implement the necessary solutions to resolve it.