How To Fix IM456 - Notification category not maintained for notification type &

IM456 - Overview

• Message type: E = Error

• Message class: IM - Maintenance notifications

• Message number: 456

• Message text: Notification category not maintained for notification type &

What causes this issue?

No notification category is defined in the control table for the
notification type you have selected.

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 about this error message.

Error message extract from SAP system. Copyright SAP SE.

IM456 - Details

• The SAP error message IM456 indicates that the notification category has not been maintained for a specific notification type. This error typically occurs in the context of SAP's Plant Maintenance (PM) or Customer Service (CS) modules when trying to create or process notifications.
  
  Cause:
  The primary cause of this error is that the system cannot find a defined notification category for the specified notification type. This can happen if:
  
  The notification type has not been properly configured in the system.
  The notification category is missing or incorrectly assigned in the configuration settings.
  
  
  Solution:
  To resolve the IM456 error, you need to ensure that the notification category is correctly maintained for the notification type in question. Here are the steps to do this:
  
  
  Access the Configuration Settings:
  
  Go to the SAP Easy Access screen.
  Navigate to the following path: SPRO -> SAP Reference IMG -> Plant Maintenance and Customer Service -> Maintenance and Service Processing -> Notifications -> Notification Types