How To Fix C$718 - Function &: Changing parameter & does not have the correct type (pool)

SAP Error Message - Details

• Message type: E = Error

• Message class: C$ -

• Message number: 718

• Message text: Function &: Changing parameter & does not have the correct type (pool)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message C$718 - Function &: Changing parameter & does not have the correct type (pool) ?

  The SAP error message C$718 indicates that there is a type mismatch when trying to change a parameter in a function module or method. Specifically, the error message states that the parameter being changed does not have the correct type, which in this case is expected to be a "pool" type.
  Cause:
  
  Type Mismatch: The parameter you are trying to change is expected to be of a specific type (in this case, a pool type), but the actual type being passed does not match this expectation.
  Incorrect Data Declaration: The data type of the variable you are using to pass to the function does not match the expected type defined in the function module or method signature.
  Function Module Definition: The function module or method may have been defined incorrectly, or there may be a misunderstanding of the expected parameter types.
  
  Solution:
  
  Check Parameter Types: Review the function module or method definition to confirm the expected data types for the parameters. Ensure that the variable you are passing matches the expected type.
  Data Declaration: If you are using a variable to pass to the function, ensure that it is declared with the correct type. For example, if the function expects a pool type, ensure that your variable is declared as such.
  Use Correct Data Types: If you are using structures or tables, ensure that they are defined correctly and that you are passing the correct structure or table type.
  Debugging: Use the debugger to step through the code and inspect the types of the variables being passed to the function. This can help identify where the type mismatch is occurring.
  Consult Documentation: If you are unsure about the expected types, consult the SAP documentation or the function module's documentation for clarification.
  
  Related Information:
  
  Function Module Documentation: You can access the documentation for the specific function module by using transaction SE37 or SE80 in SAP.
  ABAP Data Types: Familiarize yourself with ABAP data types, especially pool types, to understand how to declare and use them correctly.
  SAP Community: If you are still having trouble, consider reaching out to the SAP community forums or support for additional assistance.
  
  By following these steps, you should be able to resolve the C$718 error and ensure that the parameters being passed to the function are of the correct type.