Display product ACF fields on a specific WooCommerce email - php

Question

So I almost got it, but this last detail of specifying WooCommerce emails is leaving my head in a bit of a knot here.
I need to show ACF (advanced custom fields) fields of products (in this case it's a custom shipping time)
But only in the new order email (processing order and waiting payment order sent to the client) and then new order email to admin.
This was the main way I found: "Display product ACF field value in Woocommerce transaction emails" Thank you in advance #LoicTheAztec
I also added some conditional settings to it (mind me my PHP is very beginning copy-pasty)
which are working pretty well.
However what I can't get around is making it work only on new order emails.
I have it setup like this, and it works, however it shows on all emails that contain the email order details, and I can't have the shipping time showing on the completed order emails as it will create confusion.
// Display product ACF custom field value shipping in email notification
add_filter( 'woocommerce_order_item_name', 'custom_order_item_name', 10, 2 );
function custom_order_item_name( $item_name, $item ) {
// Targeting email notifications only
if ( 'new_order' == $email->id )
return $item_name;
// Get the WC_Product object (from order item)
$product = $item->get_product();
$othershipping = get_field( 'shipping_custom', $product->get_id());
if( $shpng_value = get_field('shipping_', $product->get_id())== "24h") {
$item_name .= '<br><p class="item-shpng" style="margin:12px 0 0;">
<strong>' . __( 'Shipping time', 'woocommerce' ) . ': </strong>' . '<p>Get it tomorrow(24h)</p>' . '</p>';
}
elseif( $shpng_value = get_field('shipping_', $product->get_id())== "2-5 days") {
$item_name .= '<br><p class="item-shpng" style="margin:12px 0 0;">
<strong>' . __( 'Shipping time', 'woocommerce' ) . ': </strong>' . '<p>2-5 days</p>' . '</p>';
}
elseif( $shpng_value = get_field('shipping_', $product->get_id())== "other") {
$item_name .= '<br><p class="item-shpng" style="margin:12px 0 0;">
<strong>' . __( 'Shipping time', 'woocommerce' ) . ': </strong>' . $othershipping . '</p>';
}
return $item_name;
}
I have tried switching the
if ( 'new_order' == $email->id )
to
if ( 'new_order' != $email->id )
But that just makes it not work anywhere.
I also thought it could be this part
function custom_order_item_name( $item_name, $item ) {
Where I need to add ($order, $sent_to_admin, $plain_text, $email )
function custom_order_item_name( $item_name, $item, $order, $sent_to_admin, $plain_text, $email )
But it makes the email return an error.

Answer 1

Normally this should work with the code below
Note: my answer is largely based on: "Customize order item meta only for WooCommerce admin email notifications". CREDITS: #Loictheaztec so don't forget to upvote that answer to!
// Setting the "sent_to_admin" as a global variable
function email_order_id_as_a_global($order, $sent_to_admin, $plain_text, $email) {
$GLOBALS['email_data'] = array(
'sent_to_admin' => $sent_to_admin, // <== HERE we set "$sent_to_admin" value
'email_id' => $email->id, // The email ID (to target specific email notification)
);
}
add_action('woocommerce_email_before_order_table', 'email_order_id_as_a_global', 1, 4);
function custom_order_item_name( $item_name, $item ) {
if ( ! is_wc_endpoint_url() && $item->is_type('line_item') ) {
// Getting the custom 'email_data' global variable
$refNameGlobalsVar = $GLOBALS;
$email_data = $refNameGlobalsVar['email_data'];
// Only for new order
if( is_array( $email_data ) && $email_data['email_id'] == 'new_order' ) {
// Get the WC_Product object (from order item)
$product = $item->get_product();
$othershipping = get_field( 'shipping_custom', $product->get_id());
if( $shpng_value = get_field('shipping_', $product->get_id())== "24h") {
$item_name .= '<br><p class="item-shpng" style="margin:12px 0 0;">
<strong>' . __( 'Shipping time', 'woocommerce' ) . ': </strong>' . '<p>Get it tomorrow(24h)</p>' . '</p>';
}
elseif( $shpng_value = get_field('shipping_', $product->get_id())== "2-5 days") {
$item_name .= '<br><p class="item-shpng" style="margin:12px 0 0;">
<strong>' . __( 'Shipping time', 'woocommerce' ) . ': </strong>' . '<p>2-5 days</p>' . '</p>';
}
elseif( $shpng_value = get_field('shipping_', $product->get_id())== "other") {
$item_name .= '<br><p class="item-shpng" style="margin:12px 0 0;">
<strong>' . __( 'Shipping time', 'woocommerce' ) . ': </strong>' . $othershipping . '</p>';
}
}
}
return $item_name;
}
add_filter( 'woocommerce_order_item_name', 'custom_order_item_name', 10, 2 );