How To Fix CNV_20800138 - No mapping maintained for renaming customer numbers

CNV_20800138 - Overview

• Message type: E = Error

• Message class: CNV_20800 - Message class for CNV_20800

• Message number: 138

• Message text: No mapping maintained for renaming customer numbers

Self-Explanatory Message

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CNV_20800138 - Details

• The SAP error message CNV_20800138 indicates that there is no mapping maintained for renaming 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 that involve data transformation.
  
  Cause:
  The error occurs when the system attempts to rename or map customer numbers from the source system to the target system, but it cannot find a corresponding mapping entry. This can happen due to several reasons:
  
  Missing Mapping Entries: The mapping table that should contain the old and new customer numbers is either incomplete or not populated.
  Incorrect Configuration: The configuration settings for the migration process may not have been set up correctly, leading to the absence of necessary mappings.
  Data Integrity Issues: There may be inconsistencies or issues in the source data that prevent proper mapping.
  
  
  Solution:
  To resolve the error, you can follow these