Cross-Page Field Access in validation rule

Hi Team,

Our requirement is to create a validation rule that compares the position ID between the Change Assignment 
position ID and the Requisition position ID.

The requisition position does not return a value. We checked it in the console log in the developer window.

The end result is that when a manager or employee performs a Change Assignment with another position, and if that position is already used in a Job Requisition, the validation rule should automatically show a warning or error message, indicating that this position cannot be used.

My validation Logic:/* eslint-disable dot-notation */

define([], () => {

'use strict';

/**

*

* @param {object} context