How To Fix IM420 - Notification already completed, deletion no longer possible

SAP Error Message - Details

• Message type: E = Error

• Message class: IM - Maintenance notifications

• Message number: 420

• Message text: Notification already completed, deletion no longer possible

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 IM420 - Notification already completed, deletion no longer possible ?

  The SAP error message IM420 ("Notification already completed, deletion no longer possible") typically occurs when you attempt to delete a maintenance notification that has already been completed. In SAP, once a notification is marked as completed, it is generally locked from further modifications, including deletion, to maintain data integrity and historical records.
  Cause:
  
  Notification Status: The notification you are trying to delete has been set to a completed status (e.g., "Completed" or "Closed").
  System Restrictions: SAP has built-in restrictions to prevent the deletion of completed notifications to ensure that historical data is preserved for reporting and auditing purposes.
  
  Solution:
  
  Check Notification Status: Verify the status of the notification. If it is indeed completed, you will not be able to delete it.
  Reopen the Notification: If you need to make changes to the notification, you may need to reopen it (if your system allows this). This typically involves changing the status back to a modifiable state, such as "In Process" or "New." This can usually be done through the transaction code IW22 (Change Notification).
  Consult with Your SAP Administrator: If you believe the notification should be deletable or if you need to delete it for a specific reason, consult with your SAP administrator or support team. They may have the necessary authorizations or can provide guidance on how to handle the situation.
  Use Alternative Methods: If deletion is not possible, consider other options such as archiving the notification or marking it in a way that indicates it is no longer relevant.
  
  Related Information:
  
  Transaction Codes: 
  
  IW21: Create Notification
  IW22: Change Notification
  IW23: Display Notification
  
  
  User Authorizations: Ensure that you have the necessary authorizations to change or delete notifications in your SAP environment.
  SAP Notes: Check for any relevant SAP Notes that may provide additional context or solutions for specific scenarios related to notifications.
  
  Best Practices:
  
  Always ensure that you have a backup or a record of notifications before making changes or deletions.
  Regularly review and clean up notifications to maintain system performance and data integrity.
  Train users on the proper handling of notifications to minimize errors and confusion.
  
  If you continue to face issues or need further assistance, consider reaching out to SAP support or your internal IT team for more tailored help.