How To Fix CNV_DMC_SIN372 - Unexpected Accounting Document Number &1 for external numbering

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 372

• Message text: Unexpected Accounting Document Number &1 for external numbering

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_SIN372 - Unexpected Accounting Document Number &1 for external numbering ?

  The SAP error message CNV_DMC_SIN372 indicates that there is an issue with the accounting document number during a data migration process, specifically when using external numbering for accounting documents. This error typically arises in the context of the SAP Data Migration Cockpit (DMC) or during the migration of financial data from legacy systems to SAP S/4HANA.
  Cause:
  The error message suggests that the system encountered an unexpected accounting document number. This can happen due to several reasons:
  
  Number Range Issues: The external number range defined for accounting documents may not be correctly set up or may not match the expected format.
  Duplicate Numbers: There may be duplicate document numbers in the data being migrated, which conflicts with the unique constraints of the accounting document number in SAP.
  Incorrect Mapping: The mapping of the external document numbers to the internal SAP numbering may be incorrect or not properly configured.
  Data Format Issues: The format of the external document numbers may not comply with the expected format in SAP.
  
  Solution:
  To resolve the CNV_DMC_SIN372 error, you can take the following steps:
  
  
  Check Number Ranges:
  
  Verify that the external number range for accounting documents is correctly defined in the system.
  Ensure that the number range is active and that it allows for the creation of new document numbers.
  
  
  
  Review Data for Duplicates:
  
  Check the data being migrated for any duplicate accounting document numbers. Ensure that each document number is unique.
  
  
  
  Validate Mapping:
  
  Review the mapping configuration in the migration tool to ensure that external document numbers are correctly mapped to the internal SAP format.
  
  
  
  Format Compliance:
  
  Ensure that the external document numbers conform to the expected format in SAP. This may include checking for leading zeros, length, and character restrictions.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for the Data Migration Cockpit and the specific migration scenario you are working on for any additional configuration steps or requirements.
  
  
  
  Testing:
  
  After making the necessary adjustments, perform a test migration with a smaller dataset to verify that the issue has been resolved before proceeding with the full 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 have found.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed information about the error and the steps you have taken to resolve it.
  
  By following these steps, you should be able to identify and resolve the cause of the CNV_DMC_SIN372 error during your data migration process.