How To Fix CNV_DMC_SIN426 - Storage bin &1 already exists in warehouse number &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_SIN - Messages for s-innovations migration

• Message number: 426

• Message text: Storage bin &1 already exists in warehouse number &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_SIN426 - Storage bin &1 already exists in warehouse number &2 ?

  The SAP error message CNV_DMC_SIN426 indicates that there is an attempt to create a storage bin that already exists in the specified warehouse number. This error typically occurs during data migration or conversion processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools.
  Cause:
  
  Duplicate Storage Bin: The storage bin you are trying to create already exists in the specified warehouse number. This can happen if the data being migrated includes storage bins that are already present in the target system.
  Data Consistency Issues: There may be inconsistencies in the data being migrated, such as multiple entries for the same storage bin.
  Incorrect Mapping: The mapping of the source data to the target structure may not be set up correctly, leading to attempts to create existing entries.
  
  Solution:
  
  Check Existing Storage Bins: Before running the migration, check the existing storage bins in the target warehouse to confirm whether the storage bin already exists. You can do this using transaction code LS03N (Display Storage Bin).
  Adjust Migration Data: If the storage bin already exists, you may need to adjust your migration data to avoid attempting to create it again. This could involve:
  
  Removing the duplicate entries from the source data.
  Modifying the migration logic to skip existing storage bins.
  
  
  Use Update Instead of Create: If the intention is to update existing storage bins rather than create new ones, ensure that the migration process is set up to perform updates instead of inserts.
  Error Handling: Implement error handling in your migration process to log and manage such errors effectively, allowing for a smoother migration experience.
  Consult Documentation: Review the SAP documentation related to the Data Migration Cockpit or the specific migration tool you are using for any additional guidelines or best practices.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LS01N (Create Storage Bin), LS02N (Change Storage Bin), and LS03N (Display Storage Bin) for managing storage bins.
  SAP Notes: Check for any SAP Notes related to the error message CNV_DMC_SIN426 for specific patches or updates that may address known issues.
  Data Migration Cockpit: If you are using the Data Migration Cockpit, ensure that you are following the recommended procedures for data mapping and transformation.
  
  By addressing the root cause of the error and ensuring that your migration data is clean and consistent, you can resolve the CNV_DMC_SIN426 error effectively.