WhatsApp Business API for Events and Webinars — registrations, reminders and RSVPs in one chat
Turn your WhatsApp number into the line attendees use to register, RSVP and ask questions — and the channel that actually gets them to show up.
- Take registrations and RSVPs straight from a chat, with a one-tap link instead of a long form people abandon.
- Send reminders an hour and a day before so fewer people forget and your no-show rate drops.
- Auto-reply to the same questions every attendee asks — timing, venue, joining link — so you're not answering them one by one.
The WhatsApp Business API lets event and webinar organisers handle registrations, RSVPs, reminders and attendee questions inside one chat thread. With ChatMitra you connect your number, build no-code registration and reminder flows, and pay only ₹0.20 per conversation on the Starter plan — so reminders actually get opened and fewer people no-show.
Take registrations and RSVPs without the drop-off
- Send the invite and a one-tap RSVP link in a chat people will actually open, instead of an email that sits unread.
- Share the date, time and venue in the same thread so the details stay one tap away when someone needs them.
- Industry findings put WhatsApp open rates above 90% versus around 20% for email — which is why a registration push lands far better here than in an inbox.
Cut no-shows with reminders that get opened
- Schedule an automatic nudge a day before and an hour before, so a busy registrant doesn't simply forget.
- The reminder carries the joining link or venue, so there's nothing to dig up at the last minute.
- No manual follow-ups — you set the schedule once and it runs for every event after that.
Share the agenda and speaker line-up in one place
- Send the agenda, session timings and speaker list as a WhatsApp message attendees can scroll back to any time.
- Keep everything in the same thread so nobody is hunting through three emails to find the start time.
- A clear, organised update before the day helps more people plan to attend the sessions they care about.
Take ticket payments inside the chat
- Send a payment link for a ticket or a paid workshop right in the conversation.
- Attendees pay with UPI or card in a couple of taps — no separate checkout page to abandon halfway.
- Confirmation lands in the same thread, so your registration and payment records stay tidy.
Collect feedback while the event is still fresh
- Send a short feedback question on WhatsApp right after the session, when people still remember it.
- Find out what worked and what to fix before you plan the next one.
- Asking on a channel they already use gets you more replies than a feedback form link in an email.
How ChatMitra helps your events & webinars business
Registrations & RSVPs in one place
Attendees register or RSVP with a one-tap link in chat — no long form to abandon, no separate sign-up tool.
Scheduled reminders
Automatic day-before and hour-before nudges carry the joining link so fewer registrants forget to turn up.
Agenda & speaker updates
Send the schedule and speaker line-up to opted-in attendees who'll actually open the message.
Auto-replies for FAQs
Timing, venue, joining link — answered instantly so you're not repeating yourself to every attendee.
Ticket payments in the thread
Send UPI or card payment links for tickets and paid workshops without leaving the chat.
Post-event feedback
Ask a quick question right after the session and use honest replies to improve the next event.
Why WhatsApp pays for itself for events and webinars
Two things decide whether an event goes well: how many people register, and how many of them actually show up. Email handles the first badly and the second worse — most invites and reminders never get opened. The reminder you spent time writing simply doesn’t get read.
WhatsApp closes that gap. Businesses using the WhatsApp API typically report open rates above 90%, against roughly 20% for email (industry figures, not a guarantee — your numbers depend on your list and your timing). So when you schedule reminder blasts before the event, a day before and an hour before, they get seen — and fewer registrants drift off into a no-show. For a paid webinar or a ticketed event, every seat you save that way is real money.
The cost side is simple too. On ChatMitra’s Starter plan you pay ₹0.20 per conversation with no monthly fee, and when an attendee messages you first, the 24-hour customer service window keeps your replies free of extra WhatsApp charges — handy for the back-and-forth around joining links and venue questions. When you want full automation, Pro is ₹999/month, and the no-code builder saves the ₹50,000–₹2,00,000 you’d otherwise spend getting this developed. Before you decide, plug your expected attendee volume into the pricing calculator and see the real figure.
What to set up first
You don’t need everything for your first event. Start with the two things that move the numbers most:
- A registration and RSVP flow with a one-tap link, so people sign up without abandoning a long form.
- Scheduled reminders a day before and an hour before, carrying the joining link or venue. This is what brings the no-show rate down.
Once those are running, add agenda updates, ticket payments and a post-event feedback question. Keep promotional broadcasts occasional and opt-in only — that’s how you stay welcome in someone’s chat list instead of getting muted. To save time writing the messages, start from the ready-to-use event templates instead of drafting each one from scratch.
When you’re ready, see ChatMitra pricing or browse all industries to see how other businesses are using WhatsApp.
Keep reading
- Schedule your reminder blasts before the event — schedule reminder blasts before the event
- Ready-to-use event templates — ready-to-use event templates
- Estimate your monthly WhatsApp cost — estimate monthly cost
Frequently Asked Questions
Can I really run event registrations and RSVPs on the WhatsApp Business API?
Yes. You can send invites with a one-tap RSVP link, confirm registrations, take ticket payments and answer attendee questions — all inside one WhatsApp chat. With ChatMitra you connect your number and build the flows with no code, so you can launch registrations the same day.
How much does WhatsApp cost for running events and webinars?
On ChatMitra's Starter plan you pay ₹0.20 per conversation with no monthly subscription, so a single event with modest volume costs very little. When you want automation like reminder flows and auto-replies, the Pro plan is ₹999/month. You can estimate your own bill with our pricing calculator before you commit.
Will WhatsApp reminders actually reduce no-shows?
They help, because they get seen. Industry findings put WhatsApp open rates above 90% versus around 20% for email, so a reminder an hour before the event is far more likely to be read than one buried in an inbox. The result is usually fewer people forgetting to attend — though no channel can guarantee a turnout.
Do I need to send marketing broadcasts, and are there rules?
Reminders to people who registered are service messages and are straightforward. Promotional invites to a wider list are marketing broadcasts — they need opt-in first and cost more per message. That's a fair trade-off to know about up front. ChatMitra is an official Meta Business Partner, so your setup stays within WhatsApp's policies.
How is this different from the free WhatsApp Business app?
The free app works for one person on one phone. The Business API lets your whole team reply from one number, runs auto-replies and reminder flows, sends approved broadcasts at scale, and connects to payments — which is what you need once registrations come in faster than one person can handle.
Do I need a developer, and how long does setup take?
No developer needed. ChatMitra's no-code chatbot builder saves roughly ₹50,000–₹2,00,000 in development cost, and most organisers are running the same day — sign up, connect your number, and set up your first registration and reminder flow before your next event.
Ready to put WhatsApp to work for your events & webinars business?
Start free on the Starter plan — pay ₹0.20 per conversation, no subscription. Upgrade to Pro (₹999/month) when you need automation.
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