How To Fix CNV_20700240 - Existing Material: &1

CNV_20700240 - Overview

• Message type: E = Error

• Message class: CNV_20700 - Material number conversion

• Message number: 240

• Message text: Existing Material: &1

Self-Explanatory Message

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CNV_20700240 - Details

• 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)