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

CNV_20000030 - Overview

• 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.

CNV_20000030 - Details

• 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