How To Fix /PF1/MSG_GUI160 - RFC: Access to RFC only permitted by an internal call

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_GUI -

• Message number: 160

• Message text: RFC: Access to RFC only permitted by an internal call

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PF1/MSG_GUI160 - RFC: Access to RFC only permitted by an internal call ?

  The SAP error message /PF1/MSG_GUI160 RFC: Access to RFC only permitted by an internal call typically indicates that there is an attempt to access a Remote Function Call (RFC) in a way that is not permitted. This error usually arises when an external program or user tries to call an RFC-enabled function module that is restricted to internal calls only.
  Cause:
  
  Access Restrictions: The function module is designed to be called only from within the SAP system (internal calls) and not from external systems or users.
  Authorization Issues: The user or program attempting to make the RFC call may not have the necessary authorizations.
  Configuration Issues: The RFC destination or the function module may not be configured correctly.
  
  Solution:
  
  
  Check Function Module Settings:
  
  Go to transaction SE37 (Function Module) and check the attributes of the function module that is causing the error.
  Ensure that the function module is not set to "RFC" if it is intended for internal use only.
  
  
  
  Use Appropriate Function Module:
  
  If you need to perform an operation that is similar to what the restricted function module does, look for an alternative function module that is designed for external calls.
  
  
  
  Review Authorization:
  
  Ensure that the user or system making the RFC call has the necessary authorizations. You can check this in transaction SU53 (Authorization Check) after the error occurs.
  
  
  
  Modify the Call:
  
  If you are developing an application that needs to call this function module, consider modifying the logic to ensure that it adheres to the internal call requirements.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation or notes related to the specific function module to understand its intended use and any restrictions.
  
  
  
  Related Information:
  
  RFC (Remote Function Call): A protocol used in SAP systems to enable communication between different systems or between different components of the same system.
  Function Module: A reusable piece of code in SAP that can be called from other programs or function modules.
  Transaction Codes:
  
  SE37: To view and edit function modules.
  SU53: To analyze authorization issues.
  
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or solutions related to this error.
  
  If the issue persists after following these steps, consider reaching out to your SAP Basis team or SAP support for further assistance.