How To Fix SD_EXPRESSION024 - Function COALESCE: Maximal type cannot be retrieved

SAP Error Message - Details

• Message type: E = Error

• Message class: SD_EXPRESSION - Messages processing AST expressions

• Message number: 024

• Message text: Function COALESCE: Maximal type cannot be retrieved

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SD_EXPRESSION024 - Function COALESCE: Maximal type cannot be retrieved ?

  The SAP error message SD_EXPRESSION024 with the description "Function COALESCE: Maximal type cannot be retrieved" typically occurs in the context of ABAP programming or when using expressions in SAP systems, particularly in the Sales and Distribution (SD) module. This error indicates that the system is unable to determine the maximal data type for the arguments provided to the COALESCE function.
  Cause:
  The COALESCE function is used to return the first non-null value from a list of arguments. The error arises when:
  
  The data types of the arguments passed to the COALESCE function are incompatible or cannot be resolved to a common type.
  There may be a mismatch in the expected data types, such as mixing character strings with numeric values or other incompatible types.
  The system is unable to infer a maximal type due to the nature of the provided arguments.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Data Types: Ensure that all arguments passed to the COALESCE function are of compatible data types. If necessary, explicitly cast the arguments to a common type.
  
  
  Use Explicit Casting: If you are mixing different data types, use explicit type conversion functions (like CAST or CONVERT) to ensure that all arguments are of the same type.
  
  
  Review the Code: Look at the code where the COALESCE function is being used. Ensure that the logic is correct and that the arguments make sense in the context of what you are trying to achieve.
  
  
  Debugging: If you are unable to identify the issue, consider using debugging tools in SAP to step through the code and inspect the values and types of the variables being passed to COALESCE.
  
  
  Consult Documentation: Refer to the SAP documentation for the COALESCE function to understand its requirements and limitations.
  
  
  Related Information:
  
  COALESCE Function: This function is commonly used in SQL and ABAP to handle null values. It is important to understand how it works and the types of arguments it accepts.
  Data Type Compatibility: Familiarize yourself with the data types used in ABAP and how they interact with each other.
  SAP Notes: Check SAP Notes and Knowledge Base Articles (KBAs) for any known issues or patches related to this error message.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an experienced ABAP developer for further assistance.