How To Fix /PLMU/UI_FRW004 - No ABB registered to handle CNR events

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMU/UI_FRW -

• Message number: 004

• Message text: No ABB registered to handle CNR events

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 /PLMU/UI_FRW004 - No ABB registered to handle CNR events ?

  The SAP error message /PLMU/UI_FRW004 No ABB registered to handle CNR events typically indicates that there is an issue with the configuration of the Application Business Blueprint (ABB) in the SAP system. This error is related to the handling of CNR (Change Notification Request) events, which are part of the SAP's event-driven architecture.
  Cause:
  
  Missing Configuration: The error usually arises when there is no Application Business Blueprint (ABB) registered to handle the specific CNR events in the system.
  Incorrect Setup: The system may not have been set up correctly to handle the events, or the necessary components may not be activated.
  Transport Issues: If the configuration was recently transported from another system, it may not have been set up correctly in the target system.
  
  Solution:
  
  
  Check ABB Configuration:
  
  Go to the transaction code SPRO and navigate to the relevant configuration settings for the Application Business Blueprint.
  Ensure that the ABB is correctly defined and that it is set up to handle CNR events.
  
  
  
  Register ABB for CNR Events:
  
  If the ABB is not registered, you may need to register it manually. This can typically be done in the configuration settings where you define the event handlers for CNR events.
  
  
  
  Review Event Handling:
  
  Check if the event handling logic is correctly implemented. This may involve reviewing the code or configuration that is supposed to handle the CNR events.
  
  
  
  Check for Missing Components:
  
  Ensure that all necessary components and dependencies are installed and activated in your SAP system.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific version of your SAP system for any additional steps or considerations.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the configuration and setup, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SPRO, SE80, and SE37 for configuration and debugging.
  SAP Notes: Search for SAP Notes related to the error message for any patches or updates that may address the issue.
  Community Forums: Check SAP Community forums or other online resources for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify and resolve the issue related to the error message /PLMU/UI_FRW004 No ABB registered to handle CNR events.