What happens when someone taps your ad
You create the ad in Meta Ads Manager and pick WhatsApp as the place the button sends people. When a customer taps it, WhatsApp opens a chat with your number and they send their first message.
Meta attaches the ad's details to that first message. Chatzyn stores them with the conversation, so the chat arrives in your shared inbox already labelled with where it came from.
- The inbox shows a "Came from this ad" card at the top of the chat and in the contact panel, with the ad's headline, text and ad ID.
- The ad's image is copied into your own storage when it can be, because the picture links Meta sends expire after a short time.
- Ad clicks that arrive on Instagram DMs and Facebook Messenger are recorded the same way and show the same card.
Reply to every ad click automatically
People who tap an ad expect an answer straight away, often at night or on a holiday. In the flow builder, start a flow with the "Click-to-WhatsApp ad" trigger and it runs on the first message from an ad.
Leave the ad list empty and the flow answers clicks from any ad. Add ad IDs and it only runs for those ads, so a sale on sarees and a sale on kurtas can each get their own greeting.
The flow can ask questions with tappable buttons, collect a name or a pin code onto the contact, tag the lead, add it to a pipeline stage, and hand the chat to a person or a team when the customer is ready. You can set it to run once per contact or add a cooldown, so a returning customer is not greeted twice.
The ad trigger runs on WhatsApp numbers. Flows for Instagram use the Instagram triggers.
WhatsApp links and QR codes for your business
Not every customer comes from an ad. Shop counters, packaging, flyers, your website and your Instagram bio can all send people to WhatsApp too. Under Links & QR codes you create an entry point: pick the number, write the message the customer will see already typed, and give it a short code.
Chatzyn builds the wa.me link and a QR code you can download as PNG or SVG for print. When the customer presses send, the code in that first message starts the flow you linked to it, and when that first message starts the flow linked to the code, the Scans column counts it.
- One code per place: a code for the shop counter, another for the delivery box, another for the Instagram bio. You see which one actually brings chats.
- Archiving a link keeps its code reserved, so an archived code is never handed to a new link. Changing a live link's code breaks anything already printed with the old one.
- A link only works on a WhatsApp number that is fully connected, because the wa.me address is built from the number itself.
What a Click to WhatsApp ad chat costs on WhatsApp
You pay Meta for the ad itself in Ads Manager. The WhatsApp messages are a separate charge, and Meta's pricing page says a chat that starts from a click-to-WhatsApp ad opens a free entry point window.
For customers who tap the ad on the WhatsApp phone app (Android or iOS), if you reply within the 24 hour customer service window, Meta does not charge for marketing, utility, authentication or service messages while that free window is open. Meta says it can stay open for up to 7 days; the Chatzyn inbox card counts 72 hours from the click, so it may show an earlier end time than Meta's maximum. Clicks from WhatsApp on desktop or web do not get the free window. The free window only covers what you pay Meta per message. You can still send free-form replies only inside the 24 hour customer service window; after that you need an approved template.
Outside that window, every business number also gets 1,000 free service messages a month from Meta. See the WhatsApp API pricing page for Meta's India rates by category, and the Pricing page for Chatzyn's plans.
Meta's free entry point rules checked on Meta's WhatsApp pricing page on 29 Oct 2026.
Rules that keep your number safe
- Everything runs on Meta's official WhatsApp Business Platform. Chatzyn does not use unofficial senders, which get business numbers banned.
- An ad or a QR code starts a chat because the customer chose to message you. That chat is not permission to send them marketing later; marketing templates need the customer's opt-in.
- Free-form replies are only allowed for 24 hours after the customer's last message. Chatzyn checks that window before it sends, so your flows and agents do not waste sends Meta would reject.
Set it up
- Connect your WhatsApp number to Chatzyn (Settings, Channels). Eligible numbers can use Coexistence and keep the WhatsApp Business app on the same number.
- In Flows, create a flow that starts with the Click-to-WhatsApp ad trigger, add your greeting and questions, and publish it.
- In Meta Ads Manager, create the ad with WhatsApp as the destination and choose the same number.
- For print and links, open Links & QR codes, create an entry point, link it to a flow that starts on its code, and download the QR code.
Questions people ask
What are Click to WhatsApp ads?
They are Meta ads on Facebook and Instagram whose button opens a WhatsApp chat with your business instead of a website. The customer sends the first message, so the conversation starts on their side.
How do I auto reply to Click to WhatsApp ads?
Connect your number to Chatzyn, create a flow that starts with the Click-to-WhatsApp ad trigger and publish it. It answers the first message from an ad, for any ad or only the ad IDs you list.
Can I see which ad a WhatsApp lead came from?
Yes. When Meta sends the ad details with the first message, the chat shows a card with the ad's headline, text, ad ID and, when it can be saved, its image.
Are messages free after a Click to WhatsApp ad?
For customers who tap the ad on the WhatsApp phone app (Android or iOS), Meta's pricing page says that if you reply within 24 hours, a free entry point window opens and Meta does not charge for marketing, utility, authentication or service messages while it is open, for up to 7 days. Chatzyn's inbox shows a 72 hour end time from the click. You still pay Meta for the ad itself.
How do I create a WhatsApp QR code for my business?
In Chatzyn, open Links & QR codes, pick your number, write the pre-typed message and a short code, and download the QR code as PNG or SVG. When the code in the customer's first message starts the flow linked to it, the Scans column counts it.
What is a WhatsApp link and how do I make one?
A wa.me link opens a WhatsApp chat with your number, optionally with a message already typed. Chatzyn builds it for you from your connected number and adds a code so you know which link brought the chat.
Can I send broadcasts to people who clicked my ad?
Only with an approved template, and marketing templates only to customers who opted in to hear from you. Clicking an ad is not marketing consent.