How To Fix NR556 - There are no internal numbers which have not been assigned

SAP Error Message - Details

• Message type: E = Error

• Message class: NR - Number ranges

• Message number: 556

• Message text: There are no internal numbers which have not been assigned

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message NR556 - There are no internal numbers which have not been assigned ?

  The SAP error message NR556, which states "There are no internal numbers which have not been assigned," typically occurs in the context of number range management. This error indicates that the system has exhausted the available numbers in the specified number range interval for a particular object (like invoices, purchase orders, etc.).
  Cause:
  
  Exhausted Number Range: The number range defined for the specific document type has been completely used up, meaning there are no more numbers available for assignment.
  Incorrect Number Range Configuration: The number range might not be properly configured, or the intervals may not be set correctly.
  Number Range Status: The number range might be set to "locked" or "not active," preventing new numbers from being assigned.
  
  Solution:
  
  
  Extend the Number Range:
  
  Go to the transaction code SNRO (Number Range Objects).
  Find the relevant number range object (e.g., for invoices, it might be FBNR).
  Check the current number range intervals and see if you can extend the range by adding new intervals or increasing the upper limit of the existing interval.
  
  
  
  Activate the Number Range:
  
  Ensure that the number range is active and not locked. You can check this in the same SNRO transaction.
  If it is locked, you may need to unlock it or create a new number range.
  
  
  
  Check for Configuration Errors:
  
  Verify that the number range is correctly assigned to the document type you are trying to create.
  Ensure that the number range is not set to a status that would prevent it from being used.
  
  
  
  Use Transaction Codes:
  
  You can also use transaction codes like OBA7 (for financial documents) or OMN1 (for number range management) to manage and configure number ranges.
  
  
  
  Consult Documentation:
  
  If you are unsure about the changes, consult the SAP documentation or your SAP administrator for guidance on managing number ranges.
  
  
  
  Related Information:
  
  Number Range Object: Each type of document in SAP has a specific number range object associated with it. Understanding the object and its configuration is crucial for troubleshooting.
  Transaction Codes: Familiarize yourself with transaction codes related to number range management, such as SNRO, OBA7, OMN1, and others.
  User Authorizations: Ensure that you have the necessary authorizations to make changes to number ranges, as this is often restricted to certain user roles.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP support team or refer to SAP Notes for any specific patches or updates related to this error.