How To Fix WB873 - Function module &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: WB - Messages for assortment list

• Message number: 873

• Message text: Function module &1 does not exist

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 WB873 - Function module &1 does not exist ?

  The SAP error message WB873, which states "Function module &1 does not exist," typically indicates that the system is trying to call a function module that is not available in the SAP system. This can happen for several reasons, and here are some common causes, solutions, and related information:
  Causes:
  
  Function Module Not Created: The function module may not have been created or activated in the system.
  Incorrect Name: There may be a typo or incorrect name in the code where the function module is being called.
  Transport Issues: If the function module was recently transported from another system, it may not have been transported correctly or may not exist in the target system.
  Authorization Issues: The user may not have the necessary authorizations to access the function module.
  Namespace Issues: The function module might exist in a different namespace that is not accessible in the current context.
  
  Solutions:
  
  
  Check Function Module Existence:
  
  Use transaction code SE37 (Function Builder) to check if the function module exists. Enter the name of the function module and see if it is available.
  
  
  
  Correct the Name:
  
  Review the code where the function module is being called and ensure that the name is spelled correctly and matches the actual function module name.
  
  
  
  Transport Check:
  
  If the function module was supposed to be transported, check the transport logs to ensure it was successfully imported into the system.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to execute the function module. You can check this using transaction SU53 after the error occurs.
  
  
  
  Namespace Verification:
  
  If the function module is in a different namespace, ensure that the calling program has access to that namespace.
  
  
  
  Recreate the Function Module:
  
  If the function module is missing and you have the necessary specifications, you may need to recreate it.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SE37: Function Builder - to view and create function modules.
  SE80: Object Navigator - to explore various objects including function modules.
  SE11: Data Dictionary - to check related database objects.
  
  
  
  Debugging:
  
  If you are unsure where the error is occurring, you can use the debugger to trace the execution and find out where the function module is being called.
  
  
  
  SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that might address specific issues related to the function module in question.
  
  
  
  By following these steps, you should be able to identify the cause of the WB873 error and implement a solution. If the problem persists, consider reaching out to your SAP Basis or development team for further assistance.