WhatsApp Marketing for E-commerce: Order Updates, Cart Recovery and Catalogue Selling
Shoppers already have WhatsApp open more often than their inbox. For e-commerce brands, that makes it a natural channel for the messages customers actually want — order confirmations, delivery updates, and the occasional nudge back to a cart they didn't finish checking out. Done well, it feels less like marketing and more like customer service. Here's how it works in practice, and where the rules around business-initiated messaging come in.
Why e-commerce brands are moving order updates to WhatsApp
Order confirmation emails get buried under promotions and newsletters. A WhatsApp message announcing a shipping update, on the other hand, tends to get read within minutes — it lands in the same thread customers use to message friends and family. That immediacy is why post-purchase communication — confirmations, dispatch notices, delivery-day alerts — is one of the first things stores move to WhatsApp.
Where WhatsApp fits in the e-commerce customer journey
The 24-hour window: what you can and can't send
WhatsApp's rules split messages into two categories. If a customer has messaged you in the last 24 hours, you can reply with free-form text, images or product links. Outside that window, you can only send messages using a pre-approved Meta template — a fixed message format submitted for review in advance. This matters for e-commerce because most of your useful messages, like a dispatch notice sent two days after purchase, happen well outside that 24-hour window and therefore need a template.
Business-initiated messages need approved templates
You cannot send a free-form "your order has shipped" message to a customer who hasn't messaged you recently. It has to use a template Meta has already approved, with any variable details — order number, tracking link, delivery date — filled in as placeholders. A platform like Havari handles the template submission and approval process so you're not learning Meta's review rules from scratch.
Order updates as WhatsApp templates
In practice this means building a small library of templates that cover the order lifecycle: confirmation, dispatch, out for delivery, delivered, and delayed. Once approved, these templates can be triggered automatically from your store or order management system, so a customer gets a WhatsApp message the moment their order status changes — no one on your team has to send it manually.
Order dispatched (template message)
Hi {{1}}, your order #{{2}} is on its way! Track it here: {{3}}. Expected delivery: {{4}}.Out for delivery (template message)
Good news {{1}} — your parcel is out for delivery today and should arrive by {{2}}. Reply if you need to leave delivery instructions.Cart recovery within the rules
Cart recovery works the same way. A shopper who adds items to their basket and leaves hasn't opened a 24-hour conversation window with you, so the reminder has to go out as an approved template rather than a casual follow-up message. Keep the template simple and low-pressure — a reminder of what's in the cart and a link back to checkout tends to outperform anything that reads like a hard sell.
Abandoned cart reminder (template message)
Hi {{1}}, you left {{2}} in your basket. It's still available — complete your order here: {{3}}.Setting up cart recovery on WhatsApp
Get WhatsApp opt-in at checkout
Add a checkbox or phone field where customers agree to order and marketing messages on WhatsApp — this is required before you can message them.
Submit and get the cart-reminder template approved
Write a short, factual reminder template and submit it for Meta's review through your Business Solution Provider.
Trigger the message after a delay
Connect your store's abandoned cart event to the messaging platform so the reminder sends automatically, typically an hour or two after checkout is left incomplete.
Move the conversation to free-form once they reply
If the customer responds with a question, you're inside the 24-hour window and can answer normally, including sending photos or catalogue links.
Catalogue-based selling
WhatsApp Business also supports product catalogues — a browsable list of items customers can view and select directly inside the chat. For stores with a manageable product range, this turns a support conversation into a sales one: a customer asks about sizing, and instead of sending a link away from WhatsApp, you can share catalogue items in the same thread, along with pricing and availability. It works particularly well once a conversation is already open, since catalogue messages sent in reply don't need a pre-approved template.
“The stores that get the most out of WhatsApp treat it as a customer service channel first and a marketing channel second — the sales follow naturally once people trust you'll only message when it matters.”
Where Havari fits in
Havari handles the WhatsApp Business verification and template approval process, then connects the messages to the same inbox you already use for SMS and email — so an order update, a cart reminder and a customer's reply all live in one place instead of a separate WhatsApp-only tool bolted onto your store. Automated triggers from order status changes can be set up once and left to run, while any replies land with the rest of your customer conversations.
Can I send a free-form WhatsApp message to remind someone about their cart?
Only if they've messaged you in the last 24 hours. Otherwise the reminder needs to be sent using a pre-approved Meta template, since it's a business-initiated message.
Do I need Meta's approval to message customers on WhatsApp?
Yes. Sending business messages on WhatsApp requires going through an approved Business Solution Provider, like Havari, or Meta's own onboarding, plus approval of any templates you use outside the 24-hour window.
Is catalogue selling only available to certain stores?
Catalogues work best for stores with a manageable, well-photographed product range. Larger or highly variable catalogues are usually better linked to rather than browsed entirely inside the chat.