WooForce

add_filter( 'wf_dhl_conversion_rate', 'alter_conversion_rate',10,2);

function alter_conversion_rate($rate, $dhl_currency){
    if( !function_exists('get_woocommerce_currency')){
        return;
    }  
    $from_currency = urlencode($dhl_currency);
    $to_currency = urlencode(get_woocommerce_currency());

    try {

WooForce

add_filter( 'wf_woocommerce_shipping_pro_shipping_costs',  'wf_hide_base_cost_for_non_westcost');

function wf_hide_base_cost_for_non_westcost( $costs ) {
	$shipping_state = WC()->customer->shipping_state;
	$states_requires_price_adjustment = array('CA');
	$shippingclass_requires_price_adjustment = array('shipping-class-a');
	
	if(!empty($shipping_state) && in_array($shipping_state,$states_requires_price_adjustment)){		
		foreach ($costs as $method_group => $method_cost) {
			if(isset($method_cost['shipping_name']) && isset($method_cost['cost'])){

WooForce

add_filter('wf_stamps_request','filter_stamps_request',10,2);

function filter_stamps_request($request,	$order){
	
	if(isset($request['To'])){
		if(isset($request['To']['ZIPCode'])){
			// ignore values after '-'
			$request['To']['ZIPCode']	=	current(explode('-',$request['To']['ZIPCode'])); 
		}
	}

WooForce

add_filter('wf_rate_for_package','ignore_invalid_box_rates',10,2);
function ignore_invalid_box_rates($response, $package_request){
	// stamps package types and sizes
	$stamps_box_sizes	=	array(
		// Domestic
		'US-FC' => array(
			// Name of the service shown to the user
			'name'  => 'First-Class Mail®',
			'package_types'  =>  array(
				'Package'                   => array(

WooForce

add_filter( 'wf_rate_for_service', 'wf_force_rate_on_weight', 10, 2 );
function wf_force_rate_on_weight($rates, $packages){
	$weight_less_than[] 	= array('weight'=>1, 'service_code'=>'US-EMI', 'package_type'=>'USPS flat rate envelope'); //Enter proper values or remove this line
	$weight_greater_than[]	= array('weight'=>1, 'service_code'=>'US-EMI', 'package_type'=>'Package'); //Enter proper values or remove this line
	$weight_equal_to[]	= array('weight'=>1, 'service_code'=>'US-EMI', 'package_type'=>'USPS flat rate envelope'); //Enter proper values or remove this line

	$weight_less_than[] 	= array('weight'=>1, 'service_code'=>'US-XM', 'package_type'=>'USPS Legal Flat Rate Envelope'); //Enter proper values or remove this line
	$weight_greater_than[]	= array('weight'=>1, 'service_code'=>'US-XM', 'package_type'=>'Package'); //Enter proper values or remove this line
	$weight_equal_to[]	= array('weight'=>1, 'service_code'=>'US-XM', 'package_type'=>'USPS Legal Flat Rate Envelope'); //Enter proper values or remove th

WooForce

add_filter('woocommerce_package_rates', 'wf_hide_shipping_method_based_on_shipping_class', 10, 2);
	
function wf_hide_shipping_method_based_on_shipping_class($available_shipping_methods, $package)
{
    $hide_when_shipping_class_exist = array(
        42 => array(
            'free_shipping'
        )
    );
    

WooForce

<?php
/*
	Plugin Name: My Custom Shipping
	Description: Plugin to calculate My Custom Shipping Cost
  	Version: 1.0.0
	Author: WooForce
	Author URI: http://www.wooforce.com
*/

function my_custom_shipping_init() {

WooForce

add_filter( 'woocommerce_package_rates', 'wf_rate_adjustment_if_cart_total_exceed', 10, 2 );
function wf_rate_adjustment_if_cart_total_exceed( $available_shipping_methods, $package ) {
	$minimum_cart_price_to_adjust = 30; //give value here
	$shipping_services_with_price = array(
	     'wf_shipping_ups:01' => 0,   //give shipping service with adjustment price in percent.
	    'wf_shipping_ups:02' => 0 
	);

	$cart_total = WC()->cart->cart_contents_total;
	

WooForce

add_filter('woocommerce_package_rates', 'hide_shipping_method_when_shipping_class_product_is_not_in_cart', 10, 2);
	
function hide_shipping_method_when_shipping_class_product_is_not_in_cart($available_shipping_methods, $package)
{

	// Shipping class IDs that need the method removed

	$shipping_class_ids = array(
		27,
	);

WooForce

add_filter('woocommerce_package_rates', 'wf_remove_shipping_options_for_particular_zip_codes', 10, 2);
	
function wf_remove_shipping_options_for_particular_zip_codes($rates, $package)
{
	global $woocommerce;
	$zip_array = array(
		'30031'
	);
	if ( in_array( $woocommerce->customer->get_shipping_postcode() , $zip_array) ) {
		unset($rates['wf_fedex_woocommerce_shipping:FEDEX_GROUND']);