Unifaun - Weight depending on service

functions.php

<?php
/**
 * @snippet       WooCommerce - Adds Default weight to parcel depending on service
 * @author        Redlight Media AB / Christopher Hedqvist
 * @compatible    WooCommerce 3.5.3
 */
function redlight_unifaun_minimum_weight_per_service( $shipment, $order) {
        foreach( $shipment['parcels'] as $i => $parcel ) {
          if( $shipment['parcels'][$i]['weight'] < 0.150  && 'PUA' === $shipment['service']['id'] ){
            $shipment['parcels'][$i]['weight'] = 0.150;
          }
          if( $shipment['parcels'][$i]['weight'] < 1.0  && 'ASPO' === $shipment['service']['id'] ){
            $shipment['parcels'][$i]['weight'] = 1.0;
          }
        }
    
    return $shipment;
}
add_filter('ac_wc_unifaun_shipment_data', 'redlight_unifaun_minimum_weight_per_service', 10, 2 );