How To Fix CNV891 - Field &2-&1 excluded but mapping values exist

CNV891 - Overview

• Message type: E = Error

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

• Message number: 891

• Message text: Field &2-&1 excluded but mapping values exist

What causes this issue?

In activity <DS:SIMG.CNV_00001_D_CHK_MAP>Check Fields for Mapping Values
</>, field &V2&-&V1& was excluded from the conversion. However, during
a recheck of this field, the system identified that mapping values exist
for this field. This means that the field should be included in the
conversion.

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?

Contact SAP for support.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV891 - Details

• The SAP error message CNV891 Field &2-&1 excluded but mapping values exist 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 between the fields defined in the mapping and the actual data being processed.
  
  Cause:
  
  Field Exclusion: The field specified in the error message (represented by &2 and &1) has been excluded from the mapping configuration, but there are still values present in the source data that are trying to be mapped to this field.
  Mapping Configuration: The mapping configuration may not be set up correctly, leading to discrepancies between the source data and the target structure.
  Data Quality Issues: The source data may contain unexpected or invalid values that do not align with the defined mapping.
  
  
  Solution:
  
  
  Review Mapping Configuration:
  
  Check the mapping configuration in the migration tool to ensure that the field in question is