How To Fix CNV_10996100 - Error: new sequence number &1 cannot be saved

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10996 - Messages for archive conversion

• Message number: 100

• Message text: Error: new sequence number &1 cannot be saved

What causes this issue?

New sequence number &01& for object &02& FATHER &03& SON &04& is meant
to be stored in table CNV_10996_ARDEF as well (for documentation
purposes).
However this INSERT (after DELETE) leads to an error.

System Response

The INSERT is refused.

How to fix this error?

Find out what causes this problem, for example by analyzing the
<DS:TRAN.SM21>SYS-LOG</>

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10996100 - Error: new sequence number &1 cannot be saved ?

  The SAP error message CNV_10996100, which states "new sequence number &1 cannot be saved," typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error is related to issues with sequence numbers that are being generated or assigned during the data migration process.
  Cause:
  
  Duplicate Sequence Numbers: The error often arises when there is an attempt to save a sequence number that already exists in the target system. This can happen if the sequence number is not unique or if there are conflicts with existing records.
  Data Integrity Issues: If the data being migrated has integrity issues, such as missing references or incorrect relationships, it can lead to problems when trying to assign sequence numbers.
  Configuration Issues: Incorrect configuration settings in the migration tool or the target system can also lead to this error.
  
  Solution:
  
  Check for Duplicates: Review the data being migrated to ensure that there are no duplicate sequence numbers. You may need to adjust the data in the source system or modify the migration mapping to avoid conflicts.
  Adjust Sequence Number Generation: If applicable, adjust the settings for how sequence numbers are generated in the target system. This may involve changing the number range settings or ensuring that the sequence number generation logic is correctly configured.
  Data Validation: Perform thorough data validation before migration. Ensure that all necessary relationships and references are intact and that the data adheres to the integrity constraints of the target system.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using. There may be specific guidelines or troubleshooting steps provided for handling sequence number issues.
  Logs and Traces: Check the logs and traces generated during the migration process for more detailed error messages or warnings that can provide additional context for the issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific migration tool you are using for best practices and troubleshooting tips.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.