How To Fix W8352 - Operator '&1' can only be applied to an object reference

W8352 - Overview

• Message type: E = Error

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

• Message number: 352

• Message text: Operator '&1' can only be applied to an object reference

What causes this issue?

Operators 'EX' and 'NX' check for the existence (or non-existence) of
an object, for which a valid object reference must be available in the
container or must be accessible via a container expression.

How to fix this error?

Please ensure that the operand entered as expression 1 has an object
value. The object references are highlighted by a special symbol in the
expression tree.
The object reference to be checked must be entered as expression 1 (on
the left side).
You must not enter a multi-line container element, also if the line
type is an object reference.
Operators 'EX' and 'NX' only use one operand. Expression 2 is deleted
when operators 'EX' or 'NX' are inserted.

Error message extract from SAP system. Copyright SAP SE.

W8352 - Details

• Certainly! Here's a detailed explanation for the SAP error message W8352 Operator '&1' can only be applied to an object reference:
  
  Error Message
  W8352 Operator '&1' can only be applied to an object reference
  
  Cause
  This warning occurs in ABAP when you use an operator (such as -> or =>) that is intended to be applied to an object reference, but the operand is not an object reference.
  
  The operator -> is used to access components or methods of an object instance.
  The operator => is used to access static components or methods of a class.
  
  If you try to use these operators on a data object that is not a reference type (for example, a structure, internal table, or simple data type), the ABAP runtime issues this warning.
  Example:
  DATA: ls_struct TYPE some_structure.
  
  " Incorrect usage: trying to use '->' on a structure (not an object reference)
  ls_struct->component = 'value'.  " This triggers W8352
  
  Solution
  
  Check the data type of the