How To Fix FDT_EXPRESSIONS599 - The result data type for aggregate function &1 should be number.

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 599

• Message text: The result data type for aggregate function &1 should be number.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS599 - The result data type for aggregate function &1 should be number. ?

  The SAP error message FDT_EXPRESSIONS599 indicates that there is an issue with the data type of the result produced by an aggregate function in a formula or expression. Specifically, the error states that the result data type for the aggregate function should be a number, but it is not.
  Cause:
  This error typically occurs in the following scenarios:
  
  Incorrect Data Type: The aggregate function (like SUM, AVG, COUNT, etc.) is being applied to a field or expression that does not return a numeric data type. For example, if you are trying to sum a string or a date field, this error will occur.
  Mismatched Data Types: If the aggregate function is used in a context where the expected data type is numeric, but the actual data type is different (e.g., character or date), this error will be triggered.
  Invalid Expression: The expression used in the aggregate function may be incorrectly defined, leading to a non-numeric result.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Data Types: Verify the data types of the fields or expressions being used in the aggregate function. Ensure that they are numeric (e.g., INTEGER, DECIMAL, FLOAT).
  
  
  Convert Data Types: If you are using a non-numeric field, consider converting it to a numeric type using appropriate conversion functions (e.g., CAST, CONVERT) before applying the aggregate function.
  
  
  Review the Expression: If you are using a complex expression, break it down and check each part to ensure that it ultimately results in a numeric value.
  
  
  Test with Sample Data: Run tests with sample data to see if the aggregate function works correctly with numeric values. This can help isolate the issue.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific details on the aggregate functions and their expected data types.
  
  
  Related Information:
  
  Aggregate Functions: Common aggregate functions in SAP include SUM, AVG, COUNT, MIN, and MAX. Each of these functions has specific requirements regarding the data types they can operate on.
  Data Type Conversion: Familiarize yourself with SAP's data type conversion functions to ensure that you can manipulate data types as needed.
  Debugging Tools: Use debugging tools or transaction codes (like SE80 or SE11) to analyze the data model and expressions being used in your calculations.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.