How To Fix WS_TOOL221 - Function Module not found!

SAP Error Message - Details

• Message type: E = Error

• Message class: WS_TOOL - Message Class for Web Services and Virtual Endpoints

• Message number: 221

• Message text: Function Module not found!

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WS_TOOL221 - Function Module not found! ?

  SAP Error Message:
  
  WS_TOOL221 Function Module not found!
  
  Cause:
  This error typically occurs when the SAP system tries to call a function module that does not exist or is not accessible in the current system/client. The function module might be:
  
  Missing because it was never created or imported.
  Deleted or renamed.
  Not transported properly from another system.
  Not released or active.
  The system or user does not have the necessary authorization to access it.
  
  In the context of SAP Web Services or tools that rely on function modules (e.g., WS tools, SOAMANAGER, or other integration tools), this error indicates that the backend function module expected by the tool or process is not found in the system.
  
  Common Scenarios:
  
  When generating or testing web services.
  When using SAP Web Service tools or adapters.
  During runtime of custom or standard function modules called by middleware or integration tools.
  After system upgrades or transport imports where some objects were missed.
  
  
  Solution:
  
  
  Check the Function Module Name:
  
  Identify the exact function module name that is reported missing.
  Use transaction SE37 to search for the function module.
  
  
  
  Verify Transport and Activation:
  
  If the function module is part of a custom development or a standard SAP add-on, ensure it has been transported correctly to the system.
  Check if the function module is active and not locked.
  
  
  
  Check Authorizations:
  
  Ensure the user executing the function module has the necessary authorizations.
  
  
  
  Re-import or Recreate the Function Module:
  
  If missing, import the relevant transport or recreate the function module if it is custom.
  For standard SAP function modules, check OSS notes or SAP support for missing objects after upgrade or patch.
  
  
  
  Check SAP Notes and Support:
  
  Search SAP Support Portal for notes related to WS_TOOL221 or the specific function module.
  Sometimes SAP provides patches or corrections for missing function modules in certain versions.
  
  
  
  Check System Consistency:
  
  Run consistency checks or use transaction SPAU/SPDD after upgrades to ensure no objects are missing or inconsistent.
  
  
  
  
  Related Information:
  
  Transaction SE37: Function Builder to check or test function modules.
  Transaction SE80: Object Navigator to browse function modules and related objects.
  Transaction SOAMANAGER: For web service configuration, sometimes missing FM errors occur here.
  SAP Notes: Search for WS_TOOL221 or the specific function module name.
  Authorization Objects: Check if user has S_FUNC or related authorizations.
  Transport Logs: Check STMS for transport import errors.
  
  
  Summary:
  The error WS_TOOL221 Function Module not found! means the system cannot find a required function module. The fix involves verifying the existence, activation, transport status, and authorizations related to the function module. If it is a standard SAP function module, check for SAP Notes or patches. If custom, ensure it is properly developed and transported.
  
  If you provide the exact function module name or the context in which this error occurs, I can help with more specific guidance.