How To Fix CNV20200476 - &1: conversion routine &2 must be modified

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20200 - Messages for development class CNV_20200

• Message number: 476

• Message text: &1: conversion routine &2 must be modified

What causes this issue?

The table field &V1& has the conversion routine &V2& assigned. However
this routine covers only a limited set of tables and table fields. It
may have to be changed so that it covers the table field &V1& as well.

System Response

Warning

How to fix this error?

Check the content of the table &V1&.
Contact the development support.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20200476 - &1: conversion routine &2 must be modified ?

  The SAP error message CNV20200476 indicates that there is an issue with a conversion routine in the context of data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error typically arises when the conversion routine defined for a specific field or data type does not meet the requirements for the data being processed.
  Cause:
  
  Incompatible Data Types: The data being converted does not match the expected format or type defined in the conversion routine.
  Missing or Incorrect Logic: The conversion routine may not have the necessary logic to handle certain values or scenarios present in the data.
  Custom Modifications: If there are custom modifications or enhancements in the conversion routine, they may not be compatible with the current data structure or requirements.
  Data Quality Issues: The source data may contain unexpected or invalid values that the conversion routine cannot process.
  
  Solution:
  
  Review the Conversion Routine: Check the specific conversion routine mentioned in the error message. Ensure that it is correctly implemented and can handle all expected input values.
  Modify the Logic: If necessary, modify the conversion routine to accommodate the data types and values being processed. This may involve adding additional checks or handling for specific cases.
  Data Cleansing: Before running the conversion, ensure that the source data is clean and adheres to the expected formats. This may involve data validation and cleansing processes.
  Testing: After making changes to the conversion routine, thoroughly test it with various data sets to ensure it works as expected and resolves the error.
  Consult Documentation: Refer to SAP documentation or notes related to the specific conversion routine for guidance on its expected behavior and requirements.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide updates to the conversion routines.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific data migration tool you are using for best practices and troubleshooting tips.
  Community Forums: Engage with the SAP community forums or support channels to see if others have encountered and resolved similar issues.
  
  If the problem persists after following these steps, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.