How To Fix FDT_EXPRESSIONS766 - Result data object cannot be the same as the aggregation column

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_EXPRESSIONS - Formula & Derivation Tool: Expressions

• Message number: 766

• Message text: Result data object cannot be the same as the aggregation column

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS766 - Result data object cannot be the same as the aggregation column ?

  The SAP error message FDT_EXPRESSIONS766 indicates that there is an issue with the configuration of a data expression in the context of a data flow or data transformation. Specifically, the error states that the result data object cannot be the same as the aggregation column. This typically occurs in scenarios where you are trying to perform an aggregation operation on a data object and simultaneously trying to assign the result back to the same object.
  Cause:
  The primary cause of this error is that the system is trying to aggregate data and store the result in the same variable or data object that is being aggregated. This creates a conflict because the original data is needed for the aggregation process, and overwriting it with the result would lead to incorrect calculations or data loss.
  Solution:
  To resolve this error, you should follow these steps:
  
  
  Identify the Aggregation Column: Determine which column or data object is being used for aggregation in your expression.
  
  
  Create a Separate Result Object: Instead of trying to store the result of the aggregation in the same object, create a new data object or variable to hold the result of the aggregation. This ensures that the original data remains intact for the aggregation process.
  
  
  Modify the Expression: Update your expression to use the new result object for storing the aggregated value. For example, if you were trying to aggregate a column named Sales and store it back in Sales, you could create a new variable called TotalSales and store the result there.
  
  
  Test the Changes: After making the necessary adjustments, test the data flow or transformation to ensure that the error is resolved and that the aggregation is functioning as expected.
  
  
  Related Information:
  
  Data Flow and Transformation: Understanding how data flows through your SAP system and how transformations are applied can help prevent similar errors in the future.
  SAP Documentation: Refer to the official SAP documentation for more details on data expressions and aggregation functions.
  Debugging Tools: Utilize SAP debugging tools to trace the execution of your data flow and identify where the error occurs.
  
  By following these steps, you should be able to resolve the FDT_EXPRESSIONS766 error and successfully perform your data aggregation without conflicts.