How To Fix RN107 - Enter the old function module name

SAP Error Message - Details

• Message type: E = Error

• Message class: RN - Rename Tool message

• Message number: 107

• Message text: Enter the old function module name

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RN107 - Enter the old function module name ?

  The SAP error message RN107, which states "Enter the old function module name," typically occurs when you are trying to create or modify a function module in the SAP system, and the system expects you to provide the name of an existing function module that you are trying to copy or modify.
  Cause:
  
  Copying a Function Module: This error often arises when you are attempting to copy an existing function module but have not specified the name of the function module you want to copy from.
  Modification of Function Module: If you are trying to modify a function module, the system may require you to specify the original function module name to ensure that the changes are applied correctly.
  
  Solution:
  To resolve the RN107 error, follow these steps:
  
  
  Specify the Old Function Module Name:
  
  When prompted, enter the name of the existing function module that you want to copy or modify. Ensure that the name is correct and that the function module exists in the system.
  
  
  
  Check for Typographical Errors:
  
  Make sure there are no typos in the function module name you are entering. Function module names are case-sensitive.
  
  
  
  Use the Correct Transaction:
  
  Ensure you are using the correct transaction code for creating or modifying function modules (e.g., SE37 for function modules).
  
  
  
  Authorization Check:
  
  Verify that you have the necessary authorizations to access and modify function modules in the SAP system.
  
  
  
  Consult Documentation:
  
  If you are unsure about the function module you need to reference, consult the SAP documentation or your development team for guidance.
  
  
  
  Related Information:
  
  Function Module: A function module is a reusable piece of code in SAP that can be called from other programs or function modules. It encapsulates specific functionality and can be used across different applications.
  Transaction Codes: Common transaction codes related to function modules include:
  
  SE37: Function Module Maintenance
  SE80: Object Navigator (to view and manage various objects, including function modules)
  
  
  SAP Notes: Check SAP Notes for any known issues or updates related to function modules and error RN107.
  
  If you continue to experience issues after following these steps, consider reaching out to your SAP Basis or development team for further assistance.