How To Fix WK310 - Function module & does not exist.

SAP Error Message - Details

• Message type: E = Error

• Message class: WK - BPT: Messages integr. inbox

• Message number: 310

• Message text: Function module & does not exist.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WK310 - Function module & does not exist. ?

  SAP Error Message:
  
  WK310 - Function module & does not exist
  
  Cause:
  This error occurs when the SAP workflow tries to call a function module that does not exist in the system. The placeholder & in the message is replaced by the name of the function module that the workflow attempted to execute but could not find.
  Common reasons include:
  
  The function module was deleted or renamed.
  The function module is part of a custom development that was not transported or activated properly.
  The workflow container or task is incorrectly configured to call a non-existent function module.
  The system or client where the workflow is running does not have the required function module (e.g., missing add-ons or patches).
  
  
  Solution:
  
  
  Identify the Function Module Name:
  
  Check the exact function module name in the error message (the & will be replaced by the actual name).
  You can also check the workflow log or the workflow task configuration to find which function module is being called.
  
  
  
  Check Function Module Existence:
  
  Use transaction SE37 or SE80 to search for the function module.
  If it does not exist, confirm whether it should be a standard SAP function module or a custom one.
  
  
  
  If the Function Module is Missing:
  
  For standard SAP function modules:
  
  Check if the relevant SAP component or add-on is installed and activated.
  Apply necessary support packages or patches.
  
  
  For custom function modules:
  
  Check if the development transport was imported correctly.
  If missing, import or create the function module as per the development specifications.
  
  
  
  
  
  Check Workflow Configuration:
  
  Go to transaction PFTC (Workflow Task Maintenance) or SWDD (Workflow Builder).
  Verify the task or step that calls the function module.
  Correct the function module name if it is misspelled or replace it with the correct one.
  
  
  
  Activate the Function Module:
  
  If the function module exists but is inactive, activate it in SE37.
  
  
  
  Check Authorizations:
  
  Ensure the user running the workflow has authorization to execute the function module.
  
  
  
  Test the Function Module:
  
  Run the function module in SE37 to verify it works without errors.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SE37 - Function Builder (to check function modules)
  SE80 - Object Navigator
  SWI1 - Workflow Log (to analyze workflow errors)
  SWDD - Workflow Builder
  PFTC - Task Maintenance
  
  
  
  SAP Notes:
  
  Search SAP Support Portal for notes related to missing function modules in workflows.
  Sometimes, specific SAP releases or patches fix issues related to missing function modules.
  
  
  
  Workflow Debugging:
  
  Use transaction SWI1 or SWEL to check workflow logs.
  Use SWUD or SWDD to debug the workflow step calling the function module.
  
  
  
  
  Summary:
  The error WK310 Function module & does not exist means the workflow is trying to call a function module that is not found in the system. The solution involves identifying the missing function module, verifying its existence and activation, correcting workflow configuration, and ensuring proper transport/import of custom developments.
  
  If you provide the exact function module name or workflow context, I can help you with more specific guidance.