How To Fix RSRTS_CDS067 - Derivation of &1 must not use itself

SAP Error Message - Details

• Message type: E = Error

• Message class: RSRTS_CDS - Messages Transient CDS Queries

• Message number: 067

• Message text: Derivation of &1 must not use itself

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSRTS_CDS067 - Derivation of &1 must not use itself ?

  The SAP error message RSRTS_CDS067, which states "Derivation of &1 must not use itself," typically occurs in the context of SAP BW (Business Warehouse) when dealing with Composite Providers or Calculation Views that have circular references. This error indicates that a derived object (like a calculated field or a measure) is attempting to reference itself, which creates a circular dependency that cannot be resolved.
  Cause:
  
  Circular Reference: The most common cause of this error is that the derivation logic for a calculated field or measure is set up in such a way that it references itself directly or indirectly.
  Incorrect Logic: The logic defined in the derivation might be incorrectly set up, leading to a situation where the system cannot resolve the dependencies.
  Modeling Errors: Errors in the data model, such as incorrect joins or relationships between tables, can also lead to this issue.
  
  Solution:
  
  Review Derivation Logic: Check the derivation logic for the calculated field or measure that is causing the error. Ensure that it does not reference itself directly or indirectly.
  Refactor Calculations: If the calculation is complex, consider breaking it down into simpler components that do not create circular references.
  Check Data Model: Review the data model for any incorrect relationships or joins that might be causing the circular reference.
  Use Alternative Approaches: If necessary, consider using alternative methods to achieve the desired result without creating circular dependencies. This might involve creating additional calculated fields or using different aggregation methods.
  Testing: After making changes, test the model to ensure that the error is resolved and that the calculations are producing the expected results.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to RSRTS_CDS067 for any specific patches or updates that might address this issue.
  Documentation: Refer to SAP BW documentation for best practices on modeling and derivation logic to avoid circular references.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  By carefully reviewing the derivation logic and ensuring that there are no circular references, you should be able to resolve the RSRTS_CDS067 error.