How To Fix S_UNIFIED_CON_API401 - Functions &1 does not exists or are not remote enabled.

SAP Error Message - Details

• Message type: E = Error

• Message class: S_UNIFIED_CON_API - Messages for API for Unified Connectivity

• Message number: 401

• Message text: Functions &1 does not exists or are not remote enabled.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message S_UNIFIED_CON_API401 - Functions &1 does not exists or are not remote enabled. ?

  The SAP error message S_UNIFIED_CON_API401 indicates that a function module you are trying to call does not exist or is not enabled for remote access. This error typically occurs in scenarios involving Remote Function Calls (RFC) or when using SAP's Unified Connectivity (UCON) framework.
  Causes:
  
  Function Module Does Not Exist: The function module you are trying to call may not be defined in the SAP system.
  Function Module Not Remote-Enabled: The function module exists but is not marked as remote-enabled. Only function modules that are explicitly defined as RFC-enabled can be called remotely.
  Authorization Issues: The user or system trying to access the function module may not have the necessary authorizations.
  Incorrect Function Module Name: There may be a typo or incorrect naming in the function module call.
  Transport Issues: If the function module was recently transported from another system, it may not have been activated or may not exist in the target system.
  
  Solutions:
  
  
  Check Function Module Existence:
  
  Use transaction code SE37 to check if the function module exists in the system.
  Ensure that the name of the function module is spelled correctly in your code.
  
  
  
  Check Remote-Enabled Status:
  
  In transaction SE37, open the function module and check if it is marked as "Remote-Enabled Module". This can be found in the attributes of the function module.
  If it is not remote-enabled, you may need to modify it (if you have the necessary authorizations) or create a new RFC-enabled function module.
  
  
  
  Authorization Check:
  
  Ensure that the user or system making the call has the necessary authorizations to execute the function module. You can check this using transaction SU53 after the error occurs.
  
  
  
  Check for Transport Issues:
  
  If the function module was recently transported, ensure that it has been activated in the target system. You can check the transport logs for any issues.
  
  
  
  Debugging:
  
  If you have access to the ABAP code, you can debug the calling program to see the exact point of failure and gather more context about the error.
  
  
  
  Consult Documentation:
  
  If the function module is part of a standard SAP package, consult the SAP documentation or SAP Notes for any known issues or additional configuration that may be required.
  
  
  
  Related Information:
  
  RFC (Remote Function Call): A protocol used in SAP to enable communication between different SAP systems or between SAP and non-SAP systems.
  Function Module: A reusable piece of code in SAP that can be called from other programs or function modules.
  Transaction Codes:
  
  SE37: Function Module maintenance.
  SU53: Authorization check analysis.
  SE80: Object Navigator for checking various objects including function modules.
  
  
  
  If the issue persists after checking the above points, consider reaching out to your SAP Basis team or SAP support for further assistance.