How To Fix CNV_20000203 - Number range back up has not yet been taken

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20000 - Messages for fiscal year change

• Message number: 203

• Message text: Number range back up has not yet been taken

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20000203 - Number range back up has not yet been taken ?

  The SAP error message CNV_20000203 indicates that a number range backup has not been taken for a specific number range object. This error typically arises during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools.
  Cause:
  The primary cause of this error is that the system requires a backup of the number range before performing certain operations, such as data migration or conversion. This is to ensure that the number ranges are consistent and that there is no data loss or conflicts during the migration process. If a backup has not been created, the system will throw this error to prevent potential issues.
  Solution:
  To resolve this error, you need to take a backup of the number range. Here are the steps to do this:
  
  
  Access the Number Range Object:
  
  Use transaction code SNRO to access the Number Range Object maintenance screen.
  
  
  
  Select the Relevant Number Range Object:
  
  Find and select the number range object that is causing the error.
  
  
  
  Create a Backup:
  
  In the maintenance screen, look for an option to create a backup of the number range. This may involve creating a new number range or copying the existing one to ensure that you have a backup.
  
  
  
  Check the Number Range Status:
  
  Ensure that the number range is set to "active" and that there are no inconsistencies.
  
  
  
  Retry the Migration Process:
  
  After taking the backup, retry the data migration or conversion process that triggered the error.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SNRO: Number Range Object Maintenance
  SNUM: Number Range Maintenance
  
  
  
  Documentation:
  
  Refer to SAP Help documentation for detailed instructions on managing number ranges and backups.
  
  
  
  Best Practices:
  
  Regularly back up number ranges, especially before major data migrations or system upgrades.
  Monitor number range usage to avoid running out of numbers, which can also lead to errors.
  
  
  
  Support:
  
  If the issue persists after taking the backup, consider reaching out to SAP support or consulting with an SAP expert for further assistance.
  
  
  
  By following these steps, you should be able to resolve the CNV_20000203 error and proceed with your data migration or conversion tasks.