How To Fix RFAC_QUICKFIX140 - Constant can't be used here because of incompatible types

SAP Error Message - Details

• Message type: E = Error

• Message class: RFAC_QUICKFIX - Refactoring Messages

• Message number: 140

• Message text: Constant can't be used here because of incompatible types

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RFAC_QUICKFIX140 - Constant can't be used here because of incompatible types ?

  The SAP error message RFAC_QUICKFIX140, which states "Constant can't be used here because of incompatible types," typically occurs in ABAP programming when there is a type mismatch between a constant and the expected data type in a particular context. This can happen in various scenarios, such as when assigning a constant to a variable, passing a constant to a function module, or using a constant in a conditional statement.
  Causes:
  
  Type Mismatch: The constant you are trying to use does not match the expected data type. For example, if you are trying to assign a string constant to a numeric variable.
  Incorrect Declaration: The constant may not be declared correctly or may not be compatible with the variable or function parameter it is being used with.
  Contextual Usage: The constant may be used in a context where a different type is expected, such as using a character constant in a numeric calculation.
  
  Solutions:
  
  
  Check Data Types: Verify the data types of the constant and the variable or function parameter you are using it with. Ensure they are compatible.
  
  Use the TYPE statement to define constants with the correct data type.
  Example:
  CONSTANTS: c_my_constant TYPE i VALUE 10.
  DATA: lv_variable TYPE i.
  lv_variable = c_my_constant.  " This is correct
  
  
  
  
  Explicit Conversion: If you need to use a constant of one type in a context that requires another type, consider using explicit type conversion.
  
  Example:
  DATA: lv_string TYPE string.
  lv_string = CONDENSE( c_my_constant ).  " Convert to string if needed
  
  
  
  
  Review Function Module Signatures: If the constant is being passed to a function module, check the function module's parameter types and ensure that the constant matches the expected types.
  
  
  Debugging: Use the ABAP debugger to step through the code and identify where the type mismatch occurs. This can help you pinpoint the exact line causing the error.
  
  
  Consult Documentation: If you are using standard SAP function modules or classes, refer to the SAP documentation for the expected parameter types.
  
  
  Related Information:
  
  ABAP Data Types: Familiarize yourself with ABAP data types and their compatibility. Common types include i (integer), f (floating point), c (character), and string.
  Constants in ABAP: Understand how to declare and use constants in ABAP. Constants are declared using the CONSTANTS keyword.
  Error Handling: Implement error handling in your ABAP code to gracefully manage type mismatches and other runtime errors.
  
  By following these steps, you should be able to resolve the RFAC_QUICKFIX140 error and ensure that your ABAP code runs smoothly.