How To Fix 5Q459 - File &1: ZKNN notification with same Zusy ID &2 already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: 5Q - Error Texts for Public Sector

• Message number: 459

• Message text: File &1: ZKNN notification with same Zusy ID &2 already exists

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 5Q459 - File &1: ZKNN notification with same Zusy ID &2 already exists ?

  The SAP error message 5Q459 indicates that there is an attempt to create a notification (in this case, a ZKNN notification) with a unique identifier (Zusy ID) that already exists in the system. This typically occurs in scenarios where the system is trying to create a new notification but finds that a notification with the same identifier is already present.
  Cause:
  
  Duplicate Notification: The most common cause is that a notification with the same Zusy ID has already been created, and the system does not allow duplicates.
  Data Entry Error: There may have been an error in data entry, leading to the same ID being used inadvertently.
  System Configuration: The system may be configured to enforce unique constraints on certain fields, including the Zusy ID.
  
  Solution:
  
  Check Existing Notifications: Before creating a new notification, check if a notification with the same Zusy ID already exists. You can do this by querying the notification table or using transaction codes related to notifications.
  Use a Different ID: If you need to create a new notification, consider using a different Zusy ID that does not conflict with existing entries.
  Review Business Processes: Ensure that the business processes in place do not lead to the creation of duplicate notifications. This may involve training users or adjusting workflows.
  System Configuration Review: If the issue persists, review the system configuration to ensure that the uniqueness constraints are set correctly and that they align with business requirements.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes related to notifications, such as IW21 (Create Notification), IW22 (Change Notification), and IW23 (Display Notification).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review SAP documentation for notifications to understand how they are structured and managed within the system.
  Support: If the issue cannot be resolved internally, consider reaching out to SAP support for assistance.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to prevent it from occurring in the future.