This snippet will disable WooCommerce core emails based on the product category

functions.php

<?php

// Add the below to the bottom of your theme's functions.php:

add_filter( 'woocommerce_email_enabled_customer_processing_order', 'disable_emails_for_fundraising', 10, 2 );
add_filter( 'woocommerce_email_enabled_customer_completed_order',  'disable_emails_for_fundraising', 10, 2 );

function disable_emails_for_fundraising( $enabled, $order ) {

	if ( isset( $order ) && count( $order->get_items() ) > 0 ) {

		foreach( $order->get_items() as $item ) {

			if ( 'line_item' == $item['type'] ) {

				$product = $order->get_product_from_item( $item );
				foreach ( array( 'fundraising', 'cat2' ) as $category ) {
					if ( has_term( $category, 'product_cat', $product->get_post_data() ) ) {
						return false;
					}
				}
			}
		}
	}

	return $enabled;
}

Hi there,

thank you for the snippet! However, I think there is a small mistake - you have one too many closing brackets, don't you? The one in line 24 should be removed, right?

Cheers

Hi there,

thank you for the snippet! However, I think there is a small mistake - you have one too many closing brackets, don't you? The one in line 24 should be removed, right?

Cheers

Actually need to be an open bracket on line 17 at the end of foreach()

Note: This filter is now used for other areas of Woocommerce. It is suggest to add the if check listed below on line 9 to prevent issues.
if( isset($order) && $order !== null ){

Of course add an ending bracket on line 25 }

@jonlimitless thanks for the suggestions, they've been added

Thanks for this. It works great :-)