<p><strong>This is a sample email template.</strong></p>
<p>Dear {last_name},</p>
<p>Thank you for completing your order {order_number}!</p>
<p>Please find your invoice in the attachment.</p>
<p>Best regards,<br />Company Name</p>
<p><strong>This is a sample email template.</strong></p>
<p>Available tags:</p>
<ul>
<li>{first_name}: Sender's first name</li>
<li>{last_name}: Sender's last name</li>
<li>{completed_date}: Order's completed date</li>
<li>{order_amount}: Order's total amount</li>
<li>{order_number}: Order's number</li>
<li>{payment_method}: Payment method</li>
<li>{transaction_id}: Transaction ID</li>
</ul>