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  • Hi @aisforadam

    If you’re able to save the value, I believe you can get the value in the “acf/fields/relationship/query” hook like this:

    $args['meta_query'] = array(
          'key'     => 'custom_acf_field',
          'value'   => get_field("custom_field_name", "option"),
          'compare' => 'LIKE'

    You can also save it as the current post/page custom field by providing the ID instead of “option” for the update_field() and get_field() functions.

    I hope this helps.