How To Fix WZ109 - RFC destination '&1' exists already

SAP Error Message - Details

• Message type: E = Error

• Message class: WZ - Workflow: Model objects

• Message number: 109

• Message text: RFC destination '&1' exists already

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WZ109 - RFC destination '&1' exists already ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WZ109 RFC destination '&1' exists already
  
  Cause:
  This warning message occurs when you try to create or define an RFC (Remote Function Call) destination in SAP with a name that already exists in the system. The system checks the RFC destination name for uniqueness, and if it finds an existing destination with the same name, it raises this warning.
  
  Explanation:
  
  RFC Destination: An RFC destination is a logical name in SAP that points to a remote system or external program for communication.
  When you create an RFC destination (via transaction SM59), the system requires that each destination name be unique.
  If you attempt to create a new RFC destination with a name that is already used, SAP will not allow it and will show the warning WZ109.
  
  
  Solution:
  
  
  Check Existing RFC Destinations:
  
  Go to transaction SM59.
  Search for the RFC destination name you want to create.
  If it already exists, verify if it is the correct one to use.
  
  
  
  Use Existing Destination:
  
  If the existing RFC destination is correct and usable, use it instead of creating a new one.
  
  
  
  Create a New RFC Destination with a Different Name:
  
  If you need a new destination, choose a unique name that does not exist in the system.
  
  
  
  Delete or Modify Existing Destination (if applicable):
  
  If the existing RFC destination is obsolete or incorrect, and you have authorization, you may delete or modify it before creating a new one with the same name.
  
  
  
  
  Additional Information:
  
  Transaction SM59 is the primary transaction to manage RFC destinations.
  RFC destinations are used for communication between SAP systems or between SAP and external systems.
  The warning WZ109 is informational and prevents duplicate entries.
  Always ensure that the RFC destination name is unique and meaningful to avoid confusion.
  If you are working in a transport landscape, ensure that the RFC destination names are consistent across systems.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error Message
  WZ109 RFC destination '&1' exists already
  
  
  Cause
  Attempt to create an RFC destination with a name that already exists
  
  
  Solution
  Use the existing destination or create a new one with a unique name
  
  
  Transaction
  SM59 (RFC Destination Maintenance)
  
  
  
  
  If you need further help, please provide the context in which you encountered this message (e.g., during transport import, manual creation, programmatic creation, etc.).