How To Fix CNV_20800141 - Old customer number is initial(mapping) : &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20800 - Message class for CNV_20800

• Message number: 141

• Message text: Old customer number is initial(mapping) : &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20800141 - Old customer number is initial(mapping) : &1 ?

  The SAP error message CNV_20800141 with the description "Old customer number is initial (mapping): &1" typically occurs during data migration or conversion processes, particularly when using SAP's data migration tools like the SAP S/4HANA Migration Cockpit or other conversion tools.
  Cause:
  This error indicates that the system is trying to map an old customer number, but the value is initial (i.e., it is empty or null). This can happen for several reasons:
  
  Missing Data: The source data may not contain a valid old customer number for the record being processed.
  Incorrect Mapping: The mapping configuration may not be set up correctly, leading to the system not being able to find a corresponding old customer number.
  Data Quality Issues: There may be issues with the quality of the data being migrated, such as missing or incorrectly formatted customer numbers.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Source Data: Verify the source data to ensure that it contains valid old customer numbers. If the data is missing, you may need to correct it in the source system or data file.
  
  
  Review Mapping Configuration: Check the mapping configuration in the migration tool to ensure that it is correctly set up to map old customer numbers to the new format. Make sure that the mapping rules are correctly defined.
  
  
  Data Cleansing: If the source data has quality issues, consider performing data cleansing to ensure that all required fields, including old customer numbers, are populated correctly.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using. There may be specific guidelines or troubleshooting steps related to this error.
  
  
  Log Analysis: Review the migration logs for additional context or related errors that may provide more insight into the issue.
  
  
  Testing: After making corrections, re-run the migration process in a test environment to ensure that the issue is resolved before proceeding with the production migration.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on data migration issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Data Migration Best Practices: Familiarize yourself with best practices for data migration in SAP, including data validation, mapping strategies, and testing procedures.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.