How To Fix IM421 - Notification type & not defined

SAP Error Message - Details

• Message type: E = Error

• Message class: IM - Maintenance notifications

• Message number: 421

• Message text: Notification type & not defined

What causes this issue?

You tried to call up a notification type that is not contained in
tables provided.

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?

Inform your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IM421 - Notification type & not defined ?

  The SAP error message IM421, which states "Notification type & not defined," typically occurs when the system is unable to find a specific notification type that is referenced in a transaction or process. This can happen in various modules, such as Plant Maintenance (PM) or Quality Management (QM), where notifications are used to track issues, maintenance tasks, or quality inspections.
  Cause:
  
  Missing Configuration: The notification type that is being referenced has not been defined in the system configuration.
  Incorrect Notification Type: The notification type may have been incorrectly entered or is not valid for the current context.
  Authorization Issues: The user may not have the necessary authorizations to access the notification type.
  Transport Issues: If the system is newly upgraded or has had recent transports, the notification type may not have been included in the transport request.
  
  Solution:
  
  
  Check Configuration:
  
  Go to the configuration settings for the relevant module (e.g., PM or QM).
  Navigate to the section for defining notification types (e.g., SPRO -> Plant Maintenance and Customer Service -> Maintenance Processing -> Notification -> Define Notification Types).
  Ensure that the notification type in question is defined and properly configured.
  
  
  
  Verify Notification Type:
  
  Double-check the notification type being used in the transaction. Ensure that it is spelled correctly and is valid for the process you are trying to execute.
  
  
  
  User Authorizations:
  
  Check if the user has the necessary authorizations to create or access the specified notification type. This can be done by reviewing the user's roles and authorizations in the system.
  
  
  
  Transport Requests:
  
  If the issue arose after a system upgrade or transport, verify that all necessary configuration settings were included in the transport request. You may need to re-import the transport or manually configure the missing notification type.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for additional guidance on notification types and their configuration.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SPRO for configuration, IW21 for creating notifications, or IW22 for changing notifications.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Support: If the issue persists, consider reaching out to your SAP support team or consulting with SAP support for further assistance.
  
  By following these steps, you should be able to identify and resolve the cause of the IM421 error message in SAP.