How To Fix CM_EHFND_FW_CALC_ENG127 - Usage of result "&1" as a first arg. of an aggr. funct. is not permitted

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 127

• Message text: Usage of result "&1" as a first arg. of an aggr. funct. is not permitted

Self-Explanatory Message

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• What is the cause and solution for SAP error message CM_EHFND_FW_CALC_ENG127 - Usage of result "&1" as a first arg. of an aggr. funct. is not permitted ?

  The SAP error message CM_EHFND_FW_CALC_ENG127 indicates that there is an issue with the usage of a result in an aggregation function within a calculation view or a similar context in SAP HANA. Specifically, the error states that the result represented by "&1" cannot be used as the first argument of an aggregation function.
  Cause:
  This error typically arises due to one of the following reasons:
  
  Invalid Aggregation Logic: The result being used as the first argument in an aggregation function is not valid. This could be due to the data type or the context in which the result is being used.
  Incorrect Calculation View Design: The calculation view may be designed in a way that does not allow the specific result to be aggregated in the manner attempted.
  Data Model Issues: There may be issues with the underlying data model that prevent the aggregation from being performed correctly.
  
  Solution:
  To resolve this error, consider the following steps:
  
  
  Review the Calculation Logic:
  
  Check the calculation view or the SQL script where the error occurs. Ensure that the result being used as the first argument in the aggregation function is appropriate and valid.
  Make sure that the data type of the result is compatible with the aggregation function being used.
  
  
  
  Modify the Aggregation Function:
  
  If the result cannot be used as the first argument, consider using a different result or modifying the aggregation logic to accommodate the data structure.
  
  
  
  Check Data Types:
  
  Ensure that the data types of the fields being aggregated are compatible with the aggregation function. For example, using a string in a numeric aggregation function will lead to errors.
  
  
  
  Test with Sample Data:
  
  If possible, test the calculation view with sample data to see if the error persists. This can help isolate the issue.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or community forums for specific guidance on the aggregation functions and their requirements.
  
  
  
  Debugging:
  
  Use debugging tools available in SAP HANA Studio or SAP Web IDE to step through the calculation logic and identify where the error is occurring.
  
  
  
  Related Information:
  
  Aggregation Functions: Familiarize yourself with the different aggregation functions available in SAP HANA (e.g., SUM, AVG, COUNT) and their requirements.
  SAP HANA Calculation Views: Understanding how to design and implement calculation views effectively can help prevent such errors.
  SAP Notes and Community: Check SAP Notes for any known issues or patches related to this error message. The SAP Community can also be a valuable resource for troubleshooting.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution.