How To Fix DMU423 - Call of function module &1 in program &2 in (transaction &3)

SAP Error Message - Details

• Message type: E = Error

• Message class: DMU - Digital Mock Up (DMU)

• Message number: 423

• Message text: Call of function module &1 in program &2 in (transaction &3)

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMU423 - Call of function module &1 in program &2 in (transaction &3) ?

  The SAP error message DMU423 typically indicates that there was an issue when calling a function module within a specific program during the execution of a transaction. This error can arise due to various reasons, including but not limited to:
  Causes:
  
  Function Module Issues: The function module being called may not exist, may be incorrectly defined, or may have been deactivated.
  Authorization Problems: The user executing the transaction may not have the necessary authorizations to call the function module.
  Parameter Mismatch: The parameters being passed to the function module may not match the expected parameters, leading to runtime errors.
  Program Errors: There may be bugs or issues in the program that is trying to call the function module.
  System Configuration: There could be issues with the system configuration or settings that affect the execution of the function module.
  
  Solutions:
  
  Check Function Module: Verify that the function module exists and is active. You can do this by using transaction SE37 (Function Builder) to check the status of the function module.
  Review Authorizations: Ensure that the user has the necessary authorizations to execute the function module. You can check this using transaction SU53 to analyze authorization failures.
  Parameter Validation: Review the parameters being passed to the function module to ensure they are correct and in the expected format.
  Debugging: If you have access, use the debugger to step through the program and identify where the error occurs. This can provide insights into what might be going wrong.
  Check for Notes and Patches: Look for SAP Notes or patches that might address known issues with the function module or the program in question.
  Consult Documentation: Review the documentation for the function module to understand its requirements and constraints.
  
  Related Information:
  
  
  Transaction Codes: 
  
  SE37: Function Module Builder
  SE80: Object Navigator
  SU53: Authorization Check
  ST22: Dump Analysis (to check for short dumps related to the error)
  
  
  
  SAP Notes: Search the SAP Support Portal for any relevant notes that might address this specific error message or related function modules.
  
  
  Community Forums: Consider checking SAP Community or other forums for similar issues reported by other users, as they may provide additional insights or solutions.
  
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis or development team for further investigation.