How Do I Use WhatsApp for Cart Reminders Without Getting My Number Banned?
Message only people who clearly opted in, use approved templates in the right category, make opting out easy, and keep volume and frequency sensible. Meta classes cart reminders as marketing messages, even when the shopper asked for them. Generic feedback requests are not accepted as utility either. AeroChat sends these through the official WhatsApp Business API with your approved templates, only to contacts with opt-in, and handles stop requests straight away.
Rules from Meta’s developer docs: Getting opt-in, template category guidelines and messaging limits, all checked 11 November 2026.
Why it happens
Merchants on the Shopify Community look for an app to send automated WhatsApp cart reminders, and ask which WhatsApp marketing tools other stores use and what they cost. One found that a Shopify Flow template for sending Judge.me review requests on WhatsApp failed to send. An art gallery whose main sales channel is WhatsApp lost its number twice to bans and shared what it learned.
Numbers get restricted when people who receive the messages don’t want them and block or report the business. Tools that send from a personal WhatsApp app, or blast lists bought or scraped elsewhere, make that much more likely.
What Meta’s rules say
Per Meta’s developer docs, checked 11 November 2026:
- Opt-in. Businesses must clearly state that a person is opting in to receive messages, and name the business they are opting in to.
- Separate consent and easy opt-out. Meta advises asking for consent for each message category and giving clear instructions for opting out of specific categories.
- Blocks and reports. People can block or report a business. If quality stays low for a sustained period, WhatsApp may limit that business’s messaging.
- Cart reminders are marketing. Meta’s template guidelines list “You left items in your cart” style messages as marketing, even if requested by users.
- Feedback requests. A generic survey or request for feedback will not be approved as utility. Feedback requests with promotional content are marketing.
- Messaging limits. Outside customer service windows, a business can reach a capped number of unique people in a moving 24-hour period. New business portfolios start at 250, and the limit rises with high-quality messaging.
The usual fixes and their limits
- Sending from the WhatsApp Business app by hand. Personal. Bulk sending from the app is how many numbers run into trouble, and it doesn’t scale.
- An unofficial bulk sender. Cheap to start. It works outside the official API, which puts the number at risk.
- An official WhatsApp tool with a cart flow. Uses the API and templates. Results still depend on who you message and how often.
- Email for reminders, WhatsApp for replies. Safe. It misses shoppers who would rather chat.
How to handle it with AeroChat
AeroChat runs on the official WhatsApp Business API. It records each contact’s opt-in status and sends cart reminders and review requests only to contacts who opted in, using templates you have had approved. Each reminder goes once per checkout, and the recipe sets the timing. When a shopper replies, AeroChat answers in the same chat, inside the 24-hour customer service window, from your store data. When someone says “stop” in any words or language, it opts them out and confirms. You can see delivered, read, replied and failed counts for each broadcast, so you notice early if something isn’t landing.
At checkout: a checkbox reads “Send me order updates and offers from Northwind Goods on WhatsApp” (example), unchecked by default.
AeroChat (approved marketing template, one hour later): Hi Leo, your Canvas tote is still in your cart. Here’s your link if you’d like to finish: [link]. Reply STOP to opt out.
Customer: Is it big enough for a laptop?
AeroChat: Yes, it fits laptops up to 15 inches (example). Here’s your checkout link again: [link]
Another customer: “Please don’t message me.” AeroChat: Done. You won’t get marketing messages from us on WhatsApp.
Copy this into AeroChat
For WhatsApp cart reminders and review requests, follow these rules.
- Only message contacts who opted in to marketing messages on WhatsApp.
- For an abandoned checkout, wait one hour (example) and send our approved cart reminder template once. Never send a second reminder for the same checkout.
- Three days after delivery (example), send our approved review request template once.
- If they reply, answer from our store data and knowledge base.
- If they ask to stop, in any words or language, opt them out of marketing messages straight away and confirm.
- Never message contacts imported without opt-in.
Reply in the customer’s language.
Submit your cart reminder and review request templates for approval before you turn this on.
What to connect
- Your Shopify store. Built in. Install AeroChat from the Shopify App Store and connect your store, so AeroChat sees abandoned checkouts, delivered orders and your products.
- WhatsApp Business through the official API. Connected in the AeroChat dashboard. See the WhatsApp Business API.
- An opt-in point. A checkbox at checkout, a chat prompt or a click-to-WhatsApp ad, with clear wording.
Questions
Why do cart reminders count as marketing?
Meta’s template guidelines list cart reminders as marketing, even when the user asked for them. Plan your opt-in for marketing messages.
What happens if my number is restricted?
See WhatsApp account restrictions for what the restrictions mean and how to respond.
How many people can I message a day?
It depends on your messaging limit, which starts at 250 unique people per 24 hours for new business portfolios. See WhatsApp messaging limits.
How do I get templates approved?
See template approval, message templates and the glossary entry on WhatsApp message templates. For the full cart flow, see recovering abandoned carts with chat.
Using a different system? If it has a public API, it connects to AeroChat the same way: describe what you want, paste in its key, and it runs.
Can’t find your tool? Message us in the chat on this page and we’ll tell you how it connects.
Send WhatsApp reminders the way Meta expects
Install AeroChat, connect WhatsApp, and send a cart reminder to your own opted-in number.
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