How To Fix CNV_20800020 - Mapping maintenance ignored for customer numbers

CNV_20800020 - Overview

• Message type: E = Error

• Message class: CNV_20800 - Message class for CNV_20800

• Message number: 020

• Message text: Mapping maintenance ignored for customer numbers

What causes this issue?

In the activity Specify Mapping Values you have ignored the mapping
maintenance. This means you want to convert the customer numbers only
based on number range intervals.

How to fix this error?

If you want to maintain the mapping, re-execute the activity Specify
Mapping Values and maintain the mapping accordingly.

Error message extract from SAP system. Copyright SAP SE.

CNV_20800020 - Details

• The SAP error message CNV_20800020 indicates that there is an issue with the mapping maintenance for customer numbers during a data migration or conversion process. This error typically arises in the context of SAP's data migration tools, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
  
  Cause:
  The error message CNV_20800020 can occur due to several reasons, including:
  
  
  Missing Mapping Entries: The mapping for customer numbers may not have been defined or is incomplete. This means that the system cannot find a corresponding entry for the customer numbers being processed.
  
  
  Incorrect Configuration: There may be issues with the configuration settings in the migration tool, leading to the system ignoring the mapping maintenance.
  
  
  Data Integrity Issues: The source data may have inconsistencies or errors that prevent proper mapping.
  
  
  Technical Issues: There could be underlying technical issues, such as database locks or connectivity problems, that affect the mapping process.
  
  
  
  Solution:
  To resolve the error CNV_20800020, you can take