Disable custom order email for free orders in WooCommerce on child sites.
Snippet Type
Execute on Child Sites
Snippet
add_filter( 'woocommerce_email_recipient_customer_completed_order', 'wc_disable_customer_order_email_if_free', 10, 2 );
function wc_disable_customer_order_email_if_free( $recipient, $order ) {
$page = $_GET['page'] = isset( $_GET['page'] ) ? $_GET['page'] : '';
if ( 'wc-settings' === $page ) {
return $recipient;
}
if ( (float) $order->get_total() === '0.00' ) $recipient = '';
return $recipient;
}