Remove order details from processing order email notification in WooCommerce on your child site.
Snippet Type
Execute on Child Sites
Snippet
add_action( 'woocommerce_email_order_details', 'action_email_order_details', 2, 4 );
function action_email_order_details( $order, $sent_to_admin, $plain_text, $email ) {
// Targeting "processing" order email notification sent to customer.
if ( 'customer_processing_order' === $email->id ) {
remove_action( 'woocommerce_email_order_details', array( WC()->mailer(), 'order_details' ) );
}
}