How To Fix CM_EHFND_FW_CALC_ENG108 - Argument "&1" of aggregation function "&2" is not a valid input or result

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_EHFND_FW_CALC_ENG - Common ACE Calculation Engine Exception Class

• Message number: 108

• Message text: Argument "&1" of aggregation function "&2" is not a valid input or result

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CM_EHFND_FW_CALC_ENG108 - Argument "&1" of aggregation function "&2" is not a valid input or result ?

  The SAP error message CM_EHFND_FW_CALC_ENG108 indicates that there is an issue with the arguments being passed to an aggregation function in a calculation or formula. Specifically, the error states that the argument &1 is not a valid input or result for the aggregation function &2. 
  Causes:
  
  Invalid Data Type: The argument being passed to the aggregation function may not be of the expected data type. For example, if the function expects a numeric value but receives a string or null value, this error can occur.
  Null or Empty Values: If the argument is null or empty, the aggregation function may not be able to process it correctly.
  Incorrect Function Usage: The aggregation function may be used incorrectly, such as passing too many or too few arguments.
  Data Model Issues: There may be issues with the underlying data model, such as missing or incorrectly defined fields that the aggregation function relies on.
  Contextual Issues: The context in which the aggregation function is being called may not be appropriate, such as trying to aggregate data that is not grouped correctly.
  
  Solutions:
  
  Check Data Types: Ensure that the arguments being passed to the aggregation function are of the correct data type. If necessary, convert the data types to match the expected input.
  Handle Null Values: Implement checks to handle null or empty values before passing them to the aggregation function. You can use functions like IFNULL or COALESCE to provide default values.
  Review Function Usage: Verify that the aggregation function is being used correctly according to the documentation. Ensure that the correct number of arguments is being passed.
  Validate Data Model: Check the data model to ensure that all required fields are defined and populated correctly. Look for any inconsistencies or missing data.
  Debugging: Use debugging tools or logs to trace the execution flow and identify where the invalid argument is being generated. This can help pinpoint the source of the issue.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific aggregation function being used to understand its requirements and limitations.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and to find potential solutions.
  Transaction Codes: Use transaction codes like SE80 (Object Navigator) or SE37 (Function Module) to explore the relevant function modules and their parameters.
  Testing: Create test cases with different inputs to see how the aggregation function behaves and to identify valid inputs.
  
  By following these steps, you should be able to diagnose and resolve the error message CM_EHFND_FW_CALC_ENG108.