How To Fix 28102 - Variable declaration for object expected

28102 - Overview

• Message type: E = Error

• Message class: 28 - Configuration

• Message number: 102

• Message text: Variable declaration for object expected

What causes this issue?

The syntax check found an error in the definition of an abbreviated
characteristic-specific name, or a preceding declaration was not closed
correctly.

System Response

The cursor shows where the error occurs.

How to fix this error?

In the constraint header (keyword OBJECTS:), definitions of
characteristic-specific variables are expected after the keyword WHERE
or after a semicolon (';'). For example:
OBJECTS:
?T IS_A POST
WHERE ?L = LENGTH ;
?C = COLOR
At the cursor, no correct variable declaration was found. Correct the
variable declaration or the preceding declarations.

Error message extract from SAP system. Copyright SAP SE.

28102 - Details

• The SAP error message 28102, "Variable declaration for object expected," typically occurs in ABAP (Advanced Business Application Programming) when the system encounters a situation where it expects a variable declaration for an object but does not find one. This can happen for various reasons, often related to syntax errors or incorrect usage of object-oriented programming concepts in ABAP.
  Causes:
  
  
  Missing Variable Declaration: The most common cause is that a variable has not been declared before it is used. In ABAP, all variables must be declared before they can be referenced.
  
  
  Incorrect Object Usage: If you are trying to use an object without properly declaring it or if the object type is not recognized, this error can occur.
  
  
  Scope Issues: The variable might be declared in a different scope (e.g., within a method or a different class) and is not accessible in the current context.
  
  
  Typographical Errors: Simple typos in variable names or object types can