Auto fill schema fields with custom fields

Hi. I’ve been using RM for a while now and I really like it. Well done on all the hard work you’ve all put in.

Can you please assist me in where I’m going wrong? I have read this ticket https://support.rankmath.com/ticket/%E2%98%85-pre-fill-schema-fields-using-custom-fields/ and I’m trying to do it myself but it doesn’t seem to be working.

Do you know where I’ve gone wrong? My function code is below:

/**
  * Filter to change the schema data.
  * Replace $schmea_type with schema name like article, review, etc.
  * @param array $entity Snippet Data
  * @return array
  */
 add_filter( 'rank_math/snippet/rich_snippet_JobPosting_entity', function( $entity ) {

  /* Here you would get the data from the custom fields and fill your schema */
  $entity = array(
    'jobLocation' => array(
      '@type' => 'Place',
      'address' => array(
        '@type' => 'PostalAddress',
        'streetAddress' => 'TEST Address',
        'addressLocality' => ', Test Local',
        'addressRegion' => 'Test Region',
        'postalCode' => 'Test Post code',
        'addressCountry' => 'UK',
      ),
    ),
    'baseSalary' => array(
      '@type' => 'MonetaryAmount',
      'currency' => 'USD',
      'value' => array(
        '@type' => 'QuantitativeValue',
        'value' => 40.00,
        'unitText' => 'HOUR'
      ),
    ),
  );

  return $entity;
 });