How To Fix CNV_NCE_BAS253 - Row &1: conversion rule is ambiguous

CNV_NCE_BAS253 - Overview

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 253

• Message text: Row &1: conversion rule is ambiguous

What causes this issue?

The file you uploaded contains ambiguous definition of conversion rules
for number range object in row &V1&.
You can only define one of the given options: 'Offset', 'Pattern' or
'External function' for a given number range row object.
The row &V1&, however, contains definitions for more than one conversion
rule type.

System Response

An error message is issued.
Uploaded mapping will not be used.

How to fix this error?

Correct the file and upload it again.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

CNV_NCE_BAS253 - Details

• The SAP error message CNV_NCE_BAS253 with the description "Row &1: conversion rule is ambiguous" typically occurs during data conversion processes, particularly when using the SAP Data Migration tools or during the execution of a conversion program. This error indicates that the system has encountered a situation where it cannot determine a clear conversion rule for a specific row of data.
  
  Cause:
  The ambiguity in conversion rules can arise from several factors, including:
  
  Multiple Matching Rules: There may be multiple conversion rules that could apply to the same data, leading to confusion about which rule to use.
  Incomplete or Incorrect Configuration: The configuration of the conversion rules may be incomplete or incorrectly set up, causing the system to be unable to resolve which rule to apply.
  Data Quality Issues: The data being processed may have inconsistencies or errors that prevent the system from applying a clear conversion rule.
  Missing Data: Required fields or values that are necessary