How To Fix FDT_CORE394 - Invalid recursion: &1 uses &2 uses &3 uses &4 uses ... uses &1

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_CORE - Formula & Derivation Tool: Core

• Message number: 394

• Message text: Invalid recursion: &1 uses &2 uses &3 uses &4 uses ... uses &1

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_CORE394 - Invalid recursion: &1 uses &2 uses &3 uses &4 uses ... uses &1 ?

  The SAP error message FDT_CORE394 indicates an issue with recursion in the data flow or function calls within the SAP system. Specifically, it means that there is a circular reference where an object (like a function, data element, or structure) is indirectly or directly referencing itself through a chain of other objects. This can lead to infinite loops or excessive resource consumption, which is why the system raises this error.
  Cause:
  The error occurs due to:
  
  Circular References: An object is defined in such a way that it eventually refers back to itself through a series of other objects.
  Incorrect Configuration: Misconfiguration in the data model or function definitions that leads to unintended recursive calls.
  Data Flow Definitions: In the context of data flow definitions, it may arise from incorrect mappings or transformations that create a loop.
  
  Solution:
  To resolve the FDT_CORE394 error, you can take the following steps:
  
  
  Identify the Circular Reference:
  
  Review the error message details, which will list the objects involved in the recursion (e.g., &1, &2, &3, &4).
  Trace the references to see how they connect back to the original object.
  
  
  
  Modify the Definitions:
  
  Adjust the definitions of the involved objects to eliminate the circular reference. This may involve:
  
  Changing the data flow mappings.
  Redefining function calls or data structures.
  Ensuring that no object directly or indirectly references itself.
  
  
  
  
  
  Testing:
  
  After making changes, test the configuration to ensure that the recursion error no longer occurs.
  Validate the data flow or function to confirm that it behaves as expected without causing infinite loops.
  
  
  
  Documentation:
  
  Document the changes made to prevent similar issues in the future and to provide clarity for other developers or administrators.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error. SAP frequently updates its knowledge base with solutions for common problems.
  Debugging Tools: Utilize SAP debugging tools to step through the execution and identify where the recursion is occurring.
  Community Forums: Engage with SAP community forums or support channels for additional insights or similar experiences from other users.
  
  By following these steps, you should be able to resolve the FDT_CORE394 error and prevent it from occurring in the future.