How To Fix CL457 - First define a function

CL457 - Overview

• Message type: E = Error

• Message class: CL - Classification

• Message number: 457

• Message text: First define a function

What causes this issue?

You want to execute a function, but have not yet defined the function.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Define the function first.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CL457 - First define a function ?

  The SAP error message CL457, which states "First define a function," typically occurs in the context of class or method definitions in ABAP (Advanced Business Application Programming). This error indicates that a function or method that is being referenced has not been defined or declared in the class or program.
  
  Cause:
  
  Missing Function Definition: The function or method you are trying to call has not been defined in the class or program.
  Typographical Error: There may be a typo in the function name or the way it is being called.
  Scope Issues: The function might be defined in a different class or context that is not accessible from where you are trying to call it.
  Incomplete Class Implementation: If you are working with an interface or abstract class, the implementing class may not have provided the required method definitions.
  
  
  Solution:
  
  
  Define the Function: Ensure that the function or method you are trying to call is defined in