How To Fix DNO166 - Notification is locked by SAP; no authorization to make changes

DNO166 - Overview

• Message type: E = Error

• Message class: DNO - Messages for General Notifications

• Message number: 166

• Message text: Notification is locked by SAP; no authorization to make changes

What causes this issue?

The notification cannot be changed by SAP because it is locked by SAP
due to missing change authorization. The attempt to unlock it was not
successful.

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?

Contact SAP regarding this problem.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DNO166 - Notification is locked by SAP; no authorization to make changes ?

  The SAP error message DNO166 indicates that a notification is locked by the system, and the user does not have the necessary authorization to make changes to it. This typically occurs in the context of SAP's Plant Maintenance (PM) or Customer Service (CS) modules, where notifications are used to track issues, maintenance requests, or service requests.
  
  Cause:
  
  Locking Mechanism: The notification is currently being edited by another user or process, which locks it to prevent concurrent modifications.
  Authorization Issues: The user attempting to make changes does not have the required authorizations to edit the notification. This could be due to missing roles or permissions in the user's profile.
  Status of the Notification: The notification may be in a status that does not allow changes (e.g., completed or closed).
  System Configuration: Certain configurations in the system may restrict access to notifications based on user roles or organizational units.
  
  
  Solution:
  
  
  Check Lock Status: 
  
  Use transaction code SM12 to check