How To Fix S{102 - Interface to &1 already created in FUGR &2

SAP Error Message - Details

• Message type: E = Error

• Message class: S{ - Message Texts for Generated RFC Table Interfaces

• Message number: 102

• Message text: Interface to &1 already created in FUGR &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message S{102 - Interface to &1 already created in FUGR &2 ?

  The SAP error message "S{102 Interface to &1 already created in FUGR &2" typically indicates that there is an attempt to create an interface for a function group (FUGR) that already has an interface defined for the specified object. This can occur during the development of function modules or when trying to modify existing function groups.
  Cause:
  
  Duplicate Interface Creation: The error arises when a developer tries to create an interface for a function group that already has an interface defined for the same object.
  Development Environment Issues: Sometimes, this can happen due to inconsistencies in the development environment or if the object was previously created but not properly activated or saved.
  
  Solution:
  
  Check Existing Interfaces: Verify if the interface for the specified object (&1) already exists in the function group (&2). You can do this by navigating to the function group in the SAP GUI and checking the interfaces.
  Modify Existing Interface: If the interface already exists, you may need to modify the existing interface instead of trying to create a new one.
  Delete and Recreate: If you believe the existing interface is incorrect or corrupted, you can delete it (if permissible) and then recreate it.
  Activation: Ensure that all objects in the function group are properly activated. Sometimes, activation issues can lead to misleading error messages.
  Transport Requests: If you are working in a transport environment, ensure that the transport requests are correctly managed and that there are no pending changes that could affect the function group.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SE80 (Object Navigator) or SE37 (Function Module) to navigate to the function group and check the interfaces.
  SAP Notes: Check SAP Notes for any known issues related to this error message. Sometimes, there may be specific patches or updates that address this issue.
  Development Guidelines: Follow best practices for SAP development, including proper naming conventions and documentation, to avoid conflicts and errors in the future.
  
  If the issue persists after following these steps, it may be beneficial to consult with a more experienced SAP developer or reach out to SAP support for further assistance.