WhatsApp API for Ecommerce: Order Updates, COD Confirmation and Support

For ecommerce, WhatsApp works best as the post-purchase channel: an order confirmation customers actually read, a cash-on-delivery confirmation that asks “Confirm” or “Cancel” before you ship, shipping and delivery updates, and a support chat when something goes wrong. Most of these are utility templates, which cost far less than marketing.

This guide walks through each message in the order journey, how COD confirmation works, what to automate, and the rules to follow. Shopify specifics (events, cart recovery) are in our Shopify WhatsApp guide.

The order journey on WhatsApp

Meta decides the final category. A utility message that slips in an offer (“and get 10% off your next order”) is treated as marketing. Rules in WhatsApp template messages.

COD confirmation on WhatsApp

Cash on delivery is popular in India, but unconfirmed COD orders lead to refused deliveries and return shipping. A WhatsApp confirmation before dispatch filters them out:

1. When a COD order is placed, send a utility template: “Hi {{name}}, please confirm your cash-on-delivery order {{order_id}} for ₹{{amount}}.” with [Confirm order] and [Cancel] quick-reply buttons.
2. When the customer taps a button, the reply arrives in your inbox with the button’s payload.
3. Confirmed orders go to packing; cancelled ones are cancelled before you pay for shipping.
4. No reply after a set time? Send one reminder, then call or hold the order, as your policy says.
5. Mark the order’s status in your store so your team doesn’t ship unconfirmed orders.

Template examples

Sample templates for an example store; adapt them to yours.

• Order confirmed: “Thanks, {{name}}! Order {{order_id}} is confirmed: {{items}}, total ₹{{amount}}. We’ll message you when it ships.”
• Shipped: “Good news, {{name}}! Order {{order_id}} has shipped and should arrive by {{date}}.” [Track order] (URL button ending in the order ID)
• Out for delivery (COD): “Your order {{order_id}} is out for delivery today. Please keep ₹{{amount}} ready.”
• Delivery failed: “We couldn’t deliver order {{order_id}} today. Reply with a convenient time, or tap below.” [Reschedule]
• Refund: “Your refund of ₹{{amount}} for order {{order_id}} has been processed. It may take a few working days to reach your account.”

Support that scales

• “Where is my order?”: a chatbot asks for the order number and replies, or hands over to a person.
• Returns and exchanges: collect the reason and photos in the chat, then assign to the returns team.
• AI answers for sizing, delivery times and policies, trained on your own pages.
• Assignment and notes so the right person handles each case, with history in one place.

More on running support in the WhatsApp customer service playbook.

Opt-in and costs

Add an unticked checkbox at checkout for order updates on WhatsApp, and a separate one for offers; see WhatsApp opt-in. Utility templates to Indian numbers cost about ₹0.115 each at Meta’s list rate (plus GST and your provider’s margin), so updating a customer across a whole order costs a few rupees at most. Marketing messages such as cart reminders cost more. Details in WhatsApp API pricing in India.

Ecommerce on WhatsApp with Automate AI

• Shopify: messages on order placed, paid, fulfilled and cancelled, each with its own template, plus abandoned-cart reminders (Shopify integration).
• Online Store: your own store page with Razorpay or cash on delivery and WhatsApp order updates (Online Store).
• Button replies to your confirmation template arrive in the inbox, and Button Clicks lists who tapped what, so your team can confirm or cancel COD orders in your store.
• Chatbots, AI and a shared inbox for support, plus campaigns for opted-in offers.

Updating the order status in Shopify or your own store after a COD confirmation is done by your team (or your developers through our REST API and webhooks); Automate AI doesn’t change Shopify orders on its own.