How To Fix CNV_NCE_BAS431 - Non-shifting mapping exists for the target interval

CNV_NCE_BAS431 - Overview

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 431

• Message text: Non-shifting mapping exists for the target interval

What causes this issue?

Number range ( &V1& / &V2& / &V3& / &V4& ) is used as target number
range in the conversion rule <ZK>Shifting Mode</>. This means that it
cannot be used in any other conversion rules.

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?

Return to the <ZK>Mapping Values for Number Range Intervals</> tab page,
and correct the target number range intervals.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_NCE_BAS431 - Details

• The SAP error message CNV_NCE_BAS431 indicates that there is a non-shifting mapping issue in the context of data conversion or migration, particularly when using the SAP Data Migration Cockpit or similar tools. This error typically arises during the mapping of source data to target structures, where the system expects a certain type of mapping that allows for shifting (i.e., moving data from one position to another) but finds that a non-shifting mapping has been defined for the target interval.
  
  Cause:
  
  Mapping Configuration: The error usually occurs when the mapping configuration for the target interval does not allow for shifting. This can happen if the source and target structures are not aligned correctly or if the mapping rules are incorrectly defined.
  Data Structure Changes: If there have been changes in the data structure (e.g., fields added or removed) that affect how data should be mapped, this can lead to conflicts in the mapping process.
  Incompatible