How to change or add Woocommerce thank you page URL key content?

Question

I have searched enough and I did not find an answer for this question but this may be a simple one.

In analytics, I want to set up goals for purchase and we have only 5 products, so each product purchase should be a separate goal.

The easy way to set purchase goal in Analytics is to supply thank you URL. Now, Woocommerce thank you URL includes important details in the thank you URL like below.

exampledomain.com/?key=wc_order_584a9caad78bc&amt=239.00&cc=USD&charset=windows-1252&cm={"order_id":13586,"order_key":"wc_order_584a9caad78bc"}&st=Completed&tx=2AF5736382483492L

This is how Paypal payment thank you pages are shown.

But when a user makes purchase directly on the site with gateways like 2checkout, moneris, stripe, I get the below URL type.

exampledomain.com/?key=wc_order_5849993d6ec72

As you can see above, this URL does not contain a lot of parameter for me to use.

The question is, How do I edit these URLs to include product SKU?

This way, it will be easy for me to filter based on SKU

Answer 1

you can edit the return url woocommerce provides to gateways by using the filter

woocommerce_get_return_url

some gateway plugins use a different method to get return url by invoking $order->get_checkout_order_received_url() ; which applies the filter

woocommerce_get_checkout_order_received_url

an example would be like :

add_filter('woocommerce_get_return_url','override_return_url',10,2);

function override_return_url($return_url,$order){

    //create empty array to store url parameters in 
    $sku_list = array();

    // retrive products in order
    foreach($order->get_items() as $key => $item)
    {
      $product = wc_get_product($item['product_id']);
      //get sku of each product and insert it in array 
      $sku_list['product_'.$item['product_id'] . 'sku'] = $product->get_sku();
    }
    //build query strings out of the SKU array
    $url_extension = http_build_query($sku_list);
    //append our strings to original url
    $modified_url = $return_url.'&'.$url_extension;

    return $modified_url;

  }

result url will be like

http://example.com/index.php/checkout/order-received/161/?key=wc_order_585214b2abb65&product_8=SKU1&product_45=SKU2