How To Fix GP155 - No 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: 155

• Message text: No free numbers available in the number interval

What causes this issue?

The system cannot assign a document number because the number range
interval has been exhausted.

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 intervals 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 GP155 - No free numbers available in the number interval ?

  The SAP error message GP155 "No 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 identifiers that require unique numbering. This error indicates that the system has exhausted the available numbers in the defined number range interval.
  Cause:
  
  Exhausted Number Range: The most common cause is that the defined number range has been completely used up. For example, if the number range is set from 1000 to 1999, and all numbers in that range have been assigned, the system will not be able to generate a new number.
  Incorrect Configuration: The number range may not be configured correctly, or the intervals may not be set up to accommodate the expected volume of transactions.
  Number Range Lock: Sometimes, a number range may be locked or restricted due to configuration settings or user authorizations.
  
  Solution:
  
  
  Extend the Number Range:
  
  Go to the transaction code SNRO (Number Range Objects).
  Find the relevant number range object (e.g., for document numbers).
  Check the current intervals and extend the range if necessary. For example, if the current range is 1000 to 1999, you might extend it to 1000 to 2999.
  Ensure that the new range does not overlap with existing ranges.
  
  
  
  Create a New Number Range:
  
  If extending the existing range is not feasible, consider creating a new number range.
  Assign the new number range to the relevant document type or transaction.
  
  
  
  Check for Locks:
  
  Ensure that there are no locks on the number range. You can check this in the same SNRO transaction or by consulting with your SAP Basis team.
  
  
  
  Review Configuration:
  
  Review the configuration settings for the number range to ensure they are set up correctly and are appropriate for your business needs.
  
  
  
  Monitor Usage:
  
  Implement monitoring to track the usage of number ranges to prevent running out of numbers in the future.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  SNRO: Number Range Object Maintenance
  SNUM: Number Range Management
  
  
  Documentation: Refer to SAP Help documentation for detailed guidance on managing number ranges.
  User Authorizations: Ensure that the user has the necessary authorizations to modify number ranges.
  
  If the issue 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.