How To Fix OC018 - No more numbers available for new operations time window set

OC018 - Overview

• Message type: E = Error

• Message class: OC - IS-Oil: BDRP Bulk Distribution Requirement Planning messages

• Message number: 018

• Message text: No more numbers available for new operations time window set

What causes this issue?

All valid internal numbers have been assigned for the operations time
window sets.

System Response

The operations time window sets cannot be created; the system cancels
all subsequent processing.

How to fix this error?

The internal number range must be extended before more operations time
window sets can be entered into the system. Please contact your system
administrator.

Error message extract from SAP system. Copyright SAP SE.

OC018 - Details

• The SAP error message OC018 "No more numbers available for new operations time window set" typically occurs in the context of production planning or operations management within SAP. This error indicates that the system has run out of available numbers for a specific time window set, which is often related to the assignment of operation numbers in production orders or similar processes.
  
  Cause:
  
  Exhausted Number Range: The most common cause of this error is that the number range defined for the operation time window set has been exhausted. This can happen if the number range is not sufficiently large to accommodate the number of operations being created.
  
  Configuration Issues: There may be configuration issues in the number range settings for the relevant object (e.g., production orders, operations).
  Incorrect Settings: The settings for the time window or operation number assignment may not be correctly defined in the system.
  
  
  Solution:
  
  
  Check Number Range Configuration:
  
  Go to the transaction code