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How To Fix UJA_EXCEPTION106 - Circle reference between &1 and &2 is detected


SAP Error Message - Details

  • Message type: E = Error

  • Message class: UJA_EXCEPTION - BPC: Admin exception message class

  • Message number: 106

  • Message text: Circle reference between &1 and &2 is detected

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  • 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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    First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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Smart SAP Assistant

  • What is the cause and solution for SAP error message UJA_EXCEPTION106 - Circle reference between &1 and &2 is detected ?

    The SAP error message UJA_EXCEPTION106 indicates that there is a circular reference detected between two objects, typically in the context of process chains or data flows in SAP BW (Business Warehouse). This means that the system has identified a situation where two or more objects are referencing each other in a way that creates a loop, which can lead to infinite recursion or other logical errors in processing.

    Cause:

    The circular reference can occur due to:

    1. Incorrect Configuration: When setting up process chains, data flows, or dependencies, if two objects are configured to depend on each other, it creates a circular reference.
    2. Data Source Dependencies: If data sources or transformations are incorrectly linked, they may inadvertently reference each other.
    3. Process Chain Steps: If steps in a process chain are set to trigger each other, it can lead to a circular dependency.

    Solution:

    To resolve the UJA_EXCEPTION106 error, you can follow these steps:

    1. Identify the Circular Reference:

      • Review the error message details to identify the specific objects (e.g., process chains, data sources) involved in the circular reference.
      • Use transaction codes like RSPC (Process Chain Maintenance) to analyze the process chains and their dependencies.
    2. Modify Dependencies:

      • Once you identify the objects involved, modify the dependencies to eliminate the circular reference. This may involve:
        • Changing the sequence of execution in process chains.
        • Adjusting data source or transformation settings to ensure they do not reference each other.
    3. Test Changes:

      • After making the necessary adjustments, test the process chain or data flow to ensure that the circular reference has been resolved and that the process runs successfully.
    4. Documentation:

      • Document the changes made to prevent similar issues in the future and to provide clarity for other team members.

    Related Information:

    • Transaction Codes: Familiarize yourself with relevant transaction codes such as RSPC for process chains, RSA1 for data modeling, and RSMO for monitoring.
    • SAP Notes: Check SAP Notes and Knowledge Base Articles for any specific guidance or patches related to this error.
    • Best Practices: Follow best practices for designing process chains and data flows to avoid circular references, such as clearly defining dependencies and execution sequences.

    If the issue persists after following these steps, consider reaching out to SAP support for further assistance.

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