How To Fix GP166 - There are not enough free numbers available in the number interval

SAP Error Message - Details

• Message type: E = Error

• Message class: GP - FI-SL and CO planning

• Message number: 166

• Message text: There are not enough free numbers available in the number interval

What causes this issue?

Line item documents are written for the combination of ledger, version,
company code or global company and fiscal year which you have planned.
You have changed or created so many records that more than 999 records
have been posted, and therefore several document numbers must be used.
For this reason, there are not enough free document numbers available.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Extend the number interval using the number range maintenance
transactions.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GP166 - There are not enough free numbers available in the number interval ?

  The SAP error message GP166, which states "There are not enough free numbers available in the number interval," typically occurs in the context of number ranges in SAP, particularly when dealing with document numbers, transaction numbers, or other sequentially assigned identifiers.
  Cause:
  
  Exhausted Number Range: The most common cause of this error is that the defined number range for a particular document type or transaction has been exhausted. This means that all the numbers in the specified range have been used up.
  Configuration Issues: There may be a misconfiguration in the number range settings, such as incorrect intervals or limits set for the number range.
  Number Range Locking: If the number range is locked for some reason (e.g., during a system upgrade or maintenance), it may not allow new numbers to be generated.
  Incorrect Number Range Assignment: The document type or transaction may not be correctly assigned to a valid number range.
  
  Solution:
  
  
  Check Number Range Status:
  
  Go to transaction code SNRO (Number Range Objects) and check the status of the number range object related to the document type or transaction that is causing the error.
  Verify if the number range has been exhausted.
  
  
  
  Extend the Number Range:
  
  If the number range is exhausted, you can extend it by going to transaction code SNRO and selecting the appropriate number range object.
  Adjust the upper limit of the number range to allow for more numbers.
  
  
  
  Create a New Number Range:
  
  If necessary, you can create a new number range interval for the document type or transaction. This can be done in the same SNRO transaction.
  Ensure that the new number range is properly assigned to the relevant document type.
  
  
  
  Check Configuration:
  
  Review the configuration settings for the number range in the relevant customizing transaction (e.g., for financial documents, you might check in OBAS or OBA7).
  Ensure that the number range is correctly assigned to the document type.
  
  
  
  Consult with Basis Team:
  
  If the issue persists, consult with your SAP Basis team to check for any system-level issues or locks that may be affecting number range generation.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  SNRO: Number Range Objects
  OBAS: Number Range Maintenance for Accounting Documents
  OBA7: Define Number Ranges for Document Types
  
  
  Documentation: Refer to SAP Help documentation for detailed information on number range management and configuration.
  User Authorizations: Ensure that you have the necessary authorizations to modify number ranges, as this may be restricted to certain user roles.
  
  By following these steps, you should be able to resolve the GP166 error and ensure that your number ranges are properly configured and maintained.