How To Fix CN440 - Serious error occurred during number assignment

CN440 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 440

• Message text: Serious error occurred during number assignment

What causes this issue?

A serious error has occurred during number range assignment for
milestones(PS)/trigger points(PP).
Possible reason:
You defined an external number range for the number range object MLST
No external number range assignments are allowed for milestones/trigger
points.
General system error.

System Response

INCLUDE 'NA_ALLG_NOFUNKTION' OBJECT DOKU ID TX

How to fix this error?

Contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

CN440 - Details

• The SAP error message CN440 ("Serious error occurred during number assignment") typically occurs in the context of number assignment for various objects in SAP, such as internal orders, projects, or other entities that require unique identifiers. This error can arise due to several reasons, and addressing it usually involves checking configurations and system settings.
  Causes:
  
  Number Range Issues: The number range for the object you are trying to create may be exhausted or incorrectly configured.
  Authorization Issues: The user may not have the necessary authorizations to access or modify the number range.
  System Configuration: There may be inconsistencies or misconfigurations in the number range settings in the SAP system.
  Database Issues: There could be underlying database issues that prevent the system from assigning a new number.
  Custom Code: If there are custom developments or enhancements, they might interfere with the standard number assignment process.
  
  Solutions:
  
  
  Check Number Ranges:
  
  Go to the transaction code SNRO (Number Range Objects) and check