How To Fix WS_TOOL807 - Referenced function module &1 is not RFC-enabled

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 807

• Message text: Referenced function module &1 is not RFC-enabled

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WS_TOOL807 - Referenced function module &1 is not RFC-enabled ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WS_TOOL807 - Referenced function module &1 is not RFC-enabled
  
  Cause:
  This error occurs when a function module that is being called remotely (via Remote Function Call - RFC) is not enabled for RFC. In SAP, for a function module to be called remotely, it must be explicitly flagged as RFC-enabled. If you try to call a function module remotely that lacks this setting, the system raises this error.
  
  Explanation:
  
  Function modules in SAP can be executed locally or remotely.
  To allow remote execution (e.g., from another system or client), the function module must be created or changed with the "Remote-Enabled Module" attribute.
  If this attribute is missing, the function module cannot be called via RFC, and the system throws the WS_TOOL807 error.
  The placeholder &1 in the message will be replaced by the name of the function module that is not RFC-enabled.
  
  
  Solution:
  
  
  Check the function module:
  
  Go to transaction SE37 (Function Builder).
  Enter the function module name (from the error message).
  Click Display.
  
  
  
  Check if the function module is RFC-enabled:
  
  In the function module attributes, check if the Processing Type is set to Remote-Enabled Module.
  If it is not, this is the cause of the error.
  
  
  
  Enable the function module for RFC:
  
  If you have the necessary authorization and it is appropriate to do so, change the function module:
  
  Click Change.
  In the attributes, set the Processing Type to Remote-Enabled Module.
  Save and activate the function module.
  
  
  
  
  
  Testing:
  
  After activation, test the RFC call again.
  The error should no longer occur.
  
  
  
  
  Important Notes:
  
  Only enable function modules for RFC if they are designed to be called remotely. Enabling a function module for RFC without proper design can cause security or performance issues.
  If you do not have authorization to change the function module, contact your SAP Basis or development team.
  Sometimes, the function module is part of a standard SAP package and should not be changed. In such cases, check if you are calling the correct function module or if there is an alternative RFC-enabled function module available.
  If the function module is custom-developed, ensure it is designed to handle remote calls properly.
  
  
  Related Information:
  
  Transaction SE37 - Function Builder (to check and change function modules).
  Remote Function Call (RFC) - SAP's protocol for calling function modules remotely.
  SAP Note or documentation on RFC and function module attributes.
  SAP Help Portal: Remote Function Calls (RFC)
  
  
  If you provide the specific function module name, I can help you check if it is RFC-enabled or suggest alternatives.
  
  Summary:
  
  
  
  Aspect
  Description
  
  
  
  
  Cause
  Function module is not flagged as RFC-enabled.
  
  
  Solution
  Change the function module's processing type to "Remote-Enabled Module" in SE37 and activate it.
  
  
  Check
  Use SE37 to verify and modify the function module attributes.
  
  
  
  
  Let me know if you need help with the exact steps or further troubleshooting!