How To Fix WS_TOOL046 - Function module & either does not exist or 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: 046

• Message text: Function module & either does not exist or is not RFC-enabled

What causes this issue?

You entered a function module that is not RFC-enabled.

System Response

A virtual interface can only be created for an RFC-enabled module.

How to fix this error?

Enter a function module that is RFC-enabled. Use the F4 input help.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WS_TOOL046 - Function module & either does not exist or is not RFC-enabled ?

  The SAP error message:
  WS_TOOL046 Function module & either does not exist or is not RFC-enabled
  
  Cause:
  This error occurs when an attempt is made to call a function module remotely (via RFC), but the function module:
  
  Does not exist in the system, or
  Exists but is not enabled for remote calls (not RFC-enabled)
  
  In other words, the system cannot find the function module or it is not set up to be called remotely.
  
  Explanation:
  
  SAP function modules can be called locally or remotely.
  For remote calls (RFC), the function module must be explicitly enabled as an RFC function module.
  If the function module is missing or not flagged as RFC-enabled, the system throws this error.
  
  
  Solution:
  
  
  Check if the function module exists:
  
  Use transaction SE37 (Function Builder).
  Enter the function module name and check if it exists.
  
  
  
  Check if the function module is RFC-enabled:
  
  In SE37, open the function module.
  Go to the Attributes tab.
  Verify that the Processing Type is set to Remote-Enabled Module.
  If it is not, change it to Remote-Enabled Module and save the changes.
  Note: Changing the processing type requires appropriate authorizations and transport requests.
  
  
  
  If the function module does not exist:
  
  Confirm the correct function module name is being called.
  If it is a custom function module, ensure it has been created and transported to the system.
  If it is a standard SAP function module, check if the system is missing any required support packages or add-ons.
  
  
  
  Check the RFC destination and connection:
  
  Sometimes the error can occur if the RFC destination is incorrect or points to the wrong system.
  Use transaction SM59 to verify the RFC destination configuration.
  
  
  
  Check authorization:
  
  Ensure the user executing the RFC has the necessary authorizations to call the function module.
  
  
  
  
  Related Information:
  
  Transaction SE37: Function Builder to check and maintain function modules.
  Transaction SM59: RFC Destinations.
  SAP Note or documentation related to the specific function module or RFC setup.
  RFC-enabled function modules are required for external systems or other SAP systems to communicate via RFC.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WS_TOOL046 Function module & either does not exist or is not RFC-enabled
  
  
  Cause
  Function module missing or not set as Remote-Enabled Module
  
  
  Solution
  Check existence in SE37, set Processing Type to Remote-Enabled Module if needed
  
  
  Additional
  Verify RFC destination (SM59) and user authorizations
  
  
  
  
  If you provide the exact function module name or context, I can help you with more specific guidance.