How To Fix CNV_20800224 - Duplicate customer number check:

CNV_20800224 - Overview

• Message type: E = Error

• Message class: CNV_20800 - Message class for CNV_20800

• Message number: 224

• Message text: Duplicate customer number check:

What causes this issue?

This check is performed on the old customer numbers maintained in
mapping. If two records maintained with the same old customer number in
mapping, then you can see an error message in the logs.
For example: A -> B and A -> C maintained in mapping
This scenario is not supported by this Package.

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

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_20800224 - Details

• The SAP error message CNV_20800224 typically indicates that there is a duplicate customer number in the system during a data migration or conversion process. This error is often encountered when using SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other data transfer methods.
  
  Cause:
  The error occurs when the system detects that the customer number being processed already exists in the target system. This can happen due to:
  
  Duplicate entries in the source data.
  Incorrect mapping of customer numbers during the migration process.
  Data from multiple sources being merged, leading to conflicts in customer numbers.
  
  
  Solution:
  To resolve the CNV_20800224 error, you can follow these steps:
  
  
  Identify Duplicates:
  
  Check the source data for duplicate customer numbers. You can use tools like Excel or SQL queries to identify duplicates in your source data.
  
  
  
  Review Mapping:
  
  Ensure that the mapping of customer numbers from the source to the target system is correct. If you are using a migration tool,