How To Fix CNV20305604 - Problem in routine CNV_20305_ZUONR: Unknown parameter value

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20305 - Messages for conversion packages in CO

• Message number: 604

• Message text: Problem in routine CNV_20305_ZUONR: Unknown parameter value

What causes this issue?

Routine CNV_20305_ZUONR is designed for converting intransparent fields
in field ZUONR.
During the dynamic call of field &V2& from table &V2&, a table field
called &V3& is meant to be used as a parameter; however this field is
not available within the given routine.
Additional information: The value of the field that needs to be
converted is &V4&.

System Response

The routine cannot make the dynamic call, and consequently it cannot
convert the field.
Nevertheless the conversion is continued for the other fields and
records.

How to fix this error?

Check if you really need to convert the field; if yes, the routine must
be changed accordingly.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20305604 - Problem in routine CNV_20305_ZUONR: Unknown parameter value ?

  The SAP error message CNV20305604, which indicates a problem in the routine CNV_20305_ZUONR due to an "Unknown parameter value," typically arises during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
  Cause:
  
  Parameter Mismatch: The error usually occurs when the routine encounters a parameter value that it does not recognize or that is not defined in the context of the migration process.
  Configuration Issues: There may be issues with the configuration settings in the migration project, such as incorrect mapping or missing values.
  Data Quality Issues: The source data may contain unexpected or invalid values that do not conform to the expected format or range.
  
  Solution:
  
  Check Parameter Values: Review the parameters being passed to the routine CNV_20305_ZUONR. Ensure that all values are valid and recognized by the routine.
  Review Migration Settings: Go through the migration settings and mappings to ensure that they are correctly configured. Look for any discrepancies or missing configurations.
  Data Validation: Validate the source data for any anomalies or unexpected values. Cleanse the data if necessary to ensure it meets the expected criteria.
  Debugging: If you have access to the development environment, consider debugging the routine to identify the exact point of failure and the values being processed.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration project you are working on. There may be specific guidelines or known issues related to the CNV_20305_ZUONR routine.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including the context in which it occurs and any relevant logs.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit, as it may contain troubleshooting steps or best practices for handling such errors.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the error and implement a suitable solution.