How To Fix FDT_EXPRESSIONS623 - Aggregation function must not be initial

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 623

• Message text: Aggregation function must not be initial

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS623 - Aggregation function must not be initial ?

  The SAP error message FDT_EXPRESSIONS623 indicates that there is an issue with an aggregation function in your data processing or reporting logic. Specifically, the error states that the aggregation function must not be initial, meaning that the function is being called without a valid input or that the input data is empty or null.
  Cause:
  
  Empty Input: The aggregation function is being applied to a dataset that does not contain any records or valid values.
  Null Values: The dataset may contain null or initial values that are not suitable for aggregation.
  Incorrect Configuration: The aggregation function may be incorrectly configured in the context of the data flow or report.
  Data Type Mismatch: The data type of the field being aggregated may not be compatible with the aggregation function being used.
  
  Solution:
  
  Check Input Data: Ensure that the dataset you are trying to aggregate contains valid, non-initial values. You can do this by reviewing the data source or the query that feeds into the aggregation function.
  Handle Null Values: If your dataset contains null values, consider using functions to handle these values, such as COALESCE or similar, to replace nulls with a default value before aggregation.
  Review Aggregation Logic: Verify that the aggregation function is correctly set up in your report or data processing logic. Ensure that it is being applied to the correct field and that the field is intended for aggregation.
  Data Type Validation: Check the data types of the fields involved in the aggregation. Ensure that they are compatible with the aggregation function you are using (e.g., summing numeric fields).
  Debugging: If you are using a complex data flow or transformation, consider adding debugging steps to log the intermediate results to identify where the initial values are coming from.
  
  Related Information:
  
  Aggregation Functions: Common aggregation functions include SUM, AVG, COUNT, MIN, and MAX. Each of these functions has specific requirements regarding the data types and values they can process.
  SAP Documentation: Refer to the official SAP documentation for more details on the specific aggregation functions and their requirements.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.