How To Fix W8312 - Object type &1 does not have a method for checking existence

W8312 - Overview

• Message type: E = Error

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

• Message number: 312

• Message text: Object type &1 does not have a method for checking existence

What causes this issue?

The operators 'EX' and 'NX' for checking the (non-)existence of an
object use the method 'ExistenceCheck'. The object type &V1& is not
assigned via this method for the existence check.

System Response

Operators 'EX' and 'NX' cannot be used for this object type.

How to fix this error?

Provided that you are dependent on this existence check, contact your
system administrator and request that the missing functionality for the
object type &V1& is implemented additionally.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message W8312 - Object type &1 does not have a method for checking existence ?

  SAP Error Message:
  W8312 Object type &1 does not have a method for checking existence
  
  Cause
  This warning message occurs when an ABAP program or function module tries to check the existence of an object instance using a method that is expected to be implemented in the object's class, but the class does not have such a method defined.
  In SAP Object-Oriented ABAP, certain standard interfaces or base classes provide a method (often named EXISTS or similar) to check whether an object instance exists or is valid. If the program calls this method on an object of a class that does not implement it, the runtime issues this warning.
  In other words:
  The object type (class) referenced by &1 does not implement a method for checking existence, but the program expects it to have one.
  
  When does this happen?
  
  When using generic code that expects all objects of a certain type to have an existence-check method.
  When calling a