How To Fix W8142 - Expression & refers to container elements that do not incorporate export

W8142 - Overview

• Message type: E = Error

• Message class: W8 - Workflow: Expressions, data flow

• Message number: 142

• Message text: Expression & refers to container elements that do not incorporate export

Self-Explanatory Message

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W8142 - Details

• Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  W8142 Expression & refers to container elements that do not incorporate export
  
  
  Cause:
  This warning occurs in SAP ABAP when you use an expression (typically in a function module call, method call, or a form call) that references container elements (like parameters or variables) which are not defined as EXPORTING parameters in the called procedure.
  In other words, the expression you are passing refers to variables or parameters that are not marked for export from the called routine, but you are trying to use them as if they are.
  For example, if you call a function module or method and pass a parameter that is not declared as EXPORTING (or RETURNING), but you try to use it as such, this warning is triggered.
  
  Explanation:
  
  Container elements: These are variables or parameters in the calling program or routine.
  EXPORT: In the context of function modules or methods,