How To Fix CMFU018 - Subscreen with items must be first subscreen with notification reference

SAP Error Message - Details

• Message type: E = Error

• Message class: CMFU - Message Class for Function Group CMFU (Confirmation)

• Message number: 018

• Message text: Subscreen with items must be first subscreen with notification reference

What causes this issue?

You want to process notification items in a screen area. However, you
have already entered a confirmation object that refers to a
notification in a screen area.

System Response

INCLUDE KEINE-FUNKTION OBJECT DOKU ID TX LANGUAGE EN
Notification items have to be the first confirmation object in the
sequence which refer to a notification, to ensure consistent
notification processing.

How to fix this error?

Change the sequence of confirmation objects which refer to a
notification in the screen areas.
The following confirmation objects refer to a notification:
Items
Tasks
Activities
Causes

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CMFU018 - Subscreen with items must be first subscreen with notification reference ?

  The SAP error message CMFU018, which states "Subscreen with items must be first subscreen with notification reference," typically occurs in the context of the SAP Plant Maintenance (PM) or Customer Service (CS) modules. This error indicates that the system expects a specific sequence of subscreens when dealing with notifications, particularly when items are involved.
  Cause:
  The error arises when the system encounters a notification that includes items, but the subscreen that displays these items is not the first subscreen in the sequence of screens for that notification. In SAP, the order of subscreens is important, especially when items are associated with a notification. The system expects the item subscreen to be the first one displayed to ensure that all necessary data is processed correctly.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Notification Configuration:
  
  Ensure that the configuration for the notification type is set up correctly. You may need to review the settings in transaction codes like SPRO (SAP Reference IMG) to check the configuration for notifications.
  
  
  
  Adjust the Subscreen Order:
  
  If you have access to the screen layout or the screen sequence configuration, make sure that the subscreen displaying the items is set as the first subscreen. This may involve customizing the screen sequence in the relevant configuration settings.
  
  
  
  Review User Exits or Enhancements:
  
  If there are any user exits or enhancements that modify the behavior of the notification screens, review them to ensure they are not affecting the order of the subscreens.
  
  
  
  Test with Different Notification Types:
  
  If possible, test the process with different notification types to see if the issue is specific to a certain type or if it is a general issue across all notifications.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that might address this specific error message. There may be patches or updates that resolve known issues related to this error.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. They can provide more detailed guidance based on your specific system configuration and version.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as IW21 (Create Notification), IW22 (Change Notification), and IW23 (Display Notification) to test and replicate the issue.
  Documentation: Review SAP documentation related to notifications in the PM or CS modules for a better understanding of how subscreens are structured and the importance of their order.
  User Forums: Consider checking SAP community forums or user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the cause of the CMFU018 error and implement a solution to resolve it.