Remove Order Number from customer emails

Hi @shameemreza, thanks for the links. I managed to sort it out.

I overrode & edited the template, basically displaying only what I want in the email template.
Here’s an example of the template. Maybe it can help someone in need:

<?php
// Check if the order object is available
if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

do_action( 'woocommerce_email_header', $email_heading, $email );

// Get order items
$items = $order->get_items();
?>

<div style="margin: 0 auto; padding: 0; width: 100%; max-width: 600px;">

<p><?php printf( esc_html__( 'Hi %s,', 'woocommerce' ), esc_html( $order->get_billing_first_name() ) ); ?></p>
<p><?php printf( esc_html__( 'We have received your order and it is now being processed. One of our consultants will be in touch with you shortly.', 'woocommerce' ) ); ?></p>

    <!-- Start creating the custom order details table -->
    <h2 style="margin: 0 0 16px; padding: 0;"><?php echo __( 'Order Details', 'woocommerce' ); ?></h2>

    <table cellspacing="0" cellpadding="6" style="border: 1px solid #eee; width: 100%; max-width: 100%; margin: 0 auto; border-collapse: collapse;">
        <thead>
            <tr>
                <th style="text-align:left; border: 1px solid #eee; padding: 12px;"><?php echo __( 'Product', 'woocommerce' ); ?></th>
                <th style="text-align:left; border: 1px solid #eee; padding: 12px;"><?php echo __( 'Quantity', 'woocommerce' ); ?></th>
                <th style="text-align:left; border: 1px solid #eee; padding: 12px;"><?php echo __( 'Price', 'woocommerce' ); ?></th>
            </tr>
        </thead>
        <tbody>
            <?php
            // Loop through the order items
            foreach ( $items as $item_id => $item ) {
                $product = $item->get_product();
                $product_name = $product ? $product->get_name() : $item->get_name();
                $quantity = $item->get_quantity();
                $price = $item->get_total();
                ?>
                <tr>
                    <td style="text-align:left; border: 1px solid #eee; padding: 12px;"><?php echo esc_html( $product_name ); ?></td>
                    <td style="text-align:left; border: 1px solid #eee; padding: 12px;"><?php echo esc_html( $quantity ); ?></td>
                    <td style="text-align:left; border: 1px solid #eee; padding: 12px;"><?php echo wc_price( $price ); ?></td>
                </tr>
                <?php
            }
            ?>
        </tbody>
    </table>

</div>

<?php
// Footer
do_action( 'woocommerce_email_footer', $email );
?>

Here’s the output