function custom_limit_users( $user_ids ) {

    $args = array(
        'number'       => 60000,
        'role__not_in' => 'learner',
        'fields'       => 'ID',
        'meta_query'   => array(
            'relation' => 'OR',
            array(
                'key'     => wp_fusion()->crm->slug . '_contact_id',
                'compare' => 'NOT EXISTS',
            ),
            array(
                'key'   => wp_fusion()->crm->slug . '_contact_id',
                'value' => false,
            ),
        ),
    );

    $user_ids = get_users( $args );

    return $user_ids;

}

add_filter( 'wpf_batch_users_register_init', 'custom_limit_users', 20 );