How To Fix CNV_20000030 - Error: unknown OFFSET &1 for field ZUONR: &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20000 - Messages for fiscal year change

• Message number: 030

• Message text: Error: unknown OFFSET &1 for field ZUONR: &2

What causes this issue?

An unknown format has been found during the analysis of field ZUONR; the
offset is not yet considered in the conversion routine.
This problem should have occurred and been resolved during the fiscal
year analysis.

System Response

The conversion cannot be continued for this table.

How to fix this error?

Create a customer message under component CA-LT-CNV.
Include the exact text of the error message as well as the name of the
table for which the conversion problem occurred.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20000030 - Error: unknown OFFSET &1 for field ZUONR: &2 ?

  The SAP error message CNV_20000030 with the description "unknown OFFSET &1 for field ZUONR: &2" 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 an issue with the data mapping or transformation logic related to the field ZUONR, which is often used for assignment numbers in financial documents.
  Cause:
  
  Invalid Offset: The error suggests that the system encountered an unexpected or invalid offset value for the field ZUONR. This could happen if the data being migrated does not conform to the expected format or structure.
  Data Mapping Issues: There may be a mismatch between the source data and the target structure, leading to an inability to correctly interpret the offset for the ZUONR field.
  Configuration Errors: Incorrect configuration in the migration settings or transformation rules can lead to this error.
  Data Quality Issues: The source data may contain invalid or corrupted entries that do not meet the expected criteria for the ZUONR field.
  
  Solution:
  
  Check Source Data: Review the source data for the ZUONR field to ensure that it contains valid values. Look for any anomalies or unexpected formats.
  Review Mapping Configuration: Verify the mapping configuration in the migration tool. Ensure that the field ZUONR is correctly mapped and that the transformation rules are appropriate for the data being migrated.
  Adjust Offsets: If applicable, adjust the offsets in the migration settings to match the expected values for the ZUONR field.
  Data Cleansing: Perform data cleansing on the source data to remove or correct any invalid entries that could be causing the error.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using to understand the expected formats and configurations for the ZUONR field.
  Testing: After making adjustments, run a test migration with a smaller dataset to verify that the issue has been resolved before proceeding with the full migration.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on data migration issues.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for detailed instructions on data mapping and transformation.
  Community Forums: Consider searching or posting in SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.