Purchase confirmation template structure
An effective WhatsApp purchase confirmation template must include: order number, purchased products (at least the main category or name), total amount paid, and information about the next step (when it will arrive, how to track). All in maximum 5-6 lines readable on mobile.
The template can have a header with the company logo (image) or the text 'Order Confirmed'. The footer includes the brand name and an opt-out message. The body contains the dynamic variables.
Add a CTA button 'Track your order' with the link to your site's tracking page. This reduces support questions and drives qualified traffic to the site in the hours following purchase.
Integration with the payment system
The trigger for sending the confirmation template is the completed payment event. On most e-commerce platforms (Shopify, WooCommerce, Magento), this event is available as a native webhook.
The technical flow: payment system (Stripe, PayPal) sends a webhook to your backend, the backend verifies the payment, creates the order record in the database, and calls Chat API to send the template to the client's number.
To reduce the latency between payment and message receipt, optimize the backend code to handle the payment webhook and Chat API call in parallel. The goal is for the customer to receive the WhatsApp within 10-15 seconds of payment.
