How To Fix O8309 - Assigned number & is the last number available

O8309 - Overview

• Message type: E = Error

• Message class: O8 - IS-Oil: TD Transportation and Distribution

• Message number: 309

• Message text: Assigned number & is the last number available

What causes this issue?

The number you are trying to use is the last internal number 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 internal number range for transport units, where the
internal range is 01.

Error message extract from SAP system. Copyright SAP SE.

O8309 - Details

• The SAP error message O8309 indicates that the assigned number for a specific number range is the last number available. This typically occurs when you are trying to create or assign a new document (like a purchase order, sales order, etc.) and the system has exhausted all available numbers in the defined number range.
  
  Cause:
  
  Exhausted Number Range: The number range defined for the document type has been completely used up. This can happen if the number range is not large enough to accommodate the volume of documents being created.
  
  Configuration Issues: The number range may not be configured correctly, or it may not have been extended to allow for more numbers.
  Manual Number Assignment: If the system is set to manual number assignment, and the last number has been used, it will trigger this error.
  
  
  Solution:
  
  
  Extend the Number Range:
  
  Go to the transaction code SNRO (Number Range Objects).
  Find the relevant number range object for the