How To Fix EC018 - Function codes beginning with '+' are reserved for customer exits

EC018 - Overview

• Message type: E = Error

• Message class: EC - Development environment: Menu Painter

• Message number: 018

• Message text: Function codes beginning with '+' are reserved for customer exits

What causes this issue?

Function codes beginning with '+' are for customer enhancements. They
are ignored during generation and do not appear in the menu until the
customer activates the codes with the enhancement transaction.

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?

Use a different character if the function is not a customer exit.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EC018 - Function codes beginning with '+' are reserved for customer exits ?

  The SAP error message EC018 indicates that you are trying to use a function code that begins with a '+' sign, which is reserved for customer exits in SAP. This error typically occurs in the context of screen programming or when dealing with custom enhancements in SAP.
  
  Cause:
  
  Reserved Function Codes: In SAP, function codes that start with '+' are reserved for customer exits. This means that these codes are intended for use in custom enhancements and should not be used in standard SAP transactions or programs.
  Incorrect Configuration: If a developer or consultant has mistakenly assigned a function code starting with '+' to a button or action in a custom screen or program, this error will occur.
  Modification of Standard Programs: If standard SAP programs have been modified to include function codes starting with '+', it can lead to this error.
  
  
  Solution:
  
  Change Function Code: Review the code or configuration where the function code is