How To Fix MW055 - The user exit is not active or has not received any data

SAP Error Message - Details

• Message type: E = Error

• Message class: MW - Messages IS-R / Allocation Tables

• Message number: 055

• Message text: The user exit is not active or has not received any data

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MW055 - The user exit is not active or has not received any data ?

  The SAP error message MW055, which states "The user exit is not active or has not received any data," typically occurs in the context of inventory management or material movements. This error indicates that a user exit (a point in the SAP program where custom code can be executed) is either not activated or is not receiving the necessary data to function correctly.
  Causes:
  
  User Exit Not Activated: The specific user exit that is supposed to handle the process is not activated in the system.
  Missing Data: The user exit is activated, but it is not receiving the required data from the calling program, which can happen due to incorrect configuration or missing parameters.
  Custom Code Issues: If there is custom code associated with the user exit, it may contain errors or may not be properly implemented.
  Authorization Issues: The user may not have the necessary authorizations to execute the user exit.
  
  Solutions:
  
  
  Activate the User Exit:
  
  Go to transaction SMOD to check if the user exit is activated.
  If it is not activated, you can activate it using the CMOD transaction by creating or modifying a project that includes the user exit.
  
  
  
  Check Data Flow:
  
  Ensure that the data required by the user exit is being passed correctly. You may need to debug the program to see what data is being sent to the user exit.
  Verify that the necessary fields are populated before the user exit is called.
  
  
  
  Review Custom Code:
  
  If there is custom code in the user exit, review it for any logical errors or issues that may prevent it from executing correctly.
  Ensure that the custom code is designed to handle the data it receives.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to execute the transaction or program that calls the user exit.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific user exit to ensure that it is being used correctly.
  
  
  
  Testing:
  
  After making changes, perform thorough testing to ensure that the issue is resolved and that the user exit is functioning as expected.
  
  
  
  Related Information:
  
  User Exits: User exits are part of the SAP enhancement framework, allowing customers to add custom functionality without modifying the standard SAP code.
  Transaction Codes:
  
  SMOD: To manage user exits.
  CMOD: To create or modify enhancement projects.
  
  
  Debugging: Use the debugger to trace the execution of the program and see where the data flow might be breaking down.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with an SAP technical consultant or reach out to SAP support for further assistance.