How To Fix WD289 - Multiple line expression not permitted

WD289 - Overview

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 289

• Message text: Multiple line expression not permitted

What causes this issue?

You have entered the multi-line expression &V1& for the agent
assignment at this step.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

Multi-line expressions cannnot be processed by the system at present.

How to fix this error?

Please enter a single-line expression with reference to a DDIC field
behind which the domain HROBJEC_14 is situated.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WD289 - Multiple line expression not permitted ?

  SAP Error Message:
  WD289 Multiple line expression not permitted
  
  
  Cause:
  This error occurs in Web Dynpro ABAP when you try to use a multi-line expression in a context where only a single-line expression is allowed. Specifically, the error is triggered if you write an expression spanning multiple lines (e.g., using line breaks or multiple statements) in places like property bindings, UI element attributes, or other expression fields that expect a single-line expression.
  For example, in the Web Dynpro context, if you try to write something like:
  if condition = true then
    value = 'X'.
  endif.
  in a property binding or expression editor, it will cause this error because the expression editor expects a single-line expression, not a block of code.
  
  
  Solution:
  
  
  Use a single-line expression: Rewrite the expression as a single line. For example, use the ABAP inline if expression or a simple expression that fits in one line.
  
  
  Move complex logic to the context or method: If the