How To Fix CNV_20700240 - Existing Material: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20700 - Material number conversion

• Message number: 240

• Message text: Existing Material: &1

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20700240 - Existing Material: &1 ?

  The SAP error message CNV_20700240, which states "Existing Material: &1," typically occurs during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the implementation of SAP S/4HANA. This error indicates that there is an attempt to create a material that already exists in the system with the specified material number (&1).
  Cause:
  
  Duplicate Material Number: The primary cause of this error is that the material number you are trying to create already exists in the SAP system.
  Data Migration Issues: During data migration, if the source data contains duplicate entries or if the mapping is incorrect, it can lead to this error.
  Incorrect Configuration: The configuration settings in the migration tool may not be set up correctly, leading to attempts to create existing records.
  
  Solution:
  
  Check Existing Materials: Verify if the material number (&1) already exists in the system. You can do this by using transaction codes like MM03 (Display Material) to check if the material is already present.
  Adjust Migration Data: If you are migrating data, ensure that your source data does not contain duplicates. Clean up the data before migration.
  Modify Mapping: If you are using a mapping file or tool, ensure that the mapping is correct and does not attempt to create materials that already exist.
  Use Existing Material: If the material already exists and you need to update it, consider using an update process instead of a create process.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using (e.g., SAP S/4HANA Migration Cockpit) for guidelines on handling existing records.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and MM03 (Display Material).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on data migration issues.
  Data Migration Tools: Understand the tools you are using for migration, such as the SAP S/4HANA Migration Cockpit or LSMW (Legacy System Migration Workbench), and their specific requirements and limitations.
  
  By following these steps, you should be able to resolve the CNV_20700240 error and successfully manage your material data in SAP.