Webinars sign up 1,000 and 200 show up
Email reminders go to spam. The T-1h email never gets read. The 80% no-show rate is treated like a fact of life — but it's a channel problem, not an attendance problem.
WHATSAPP FOR EVENTS & WEBINARS
Get more sign-ups, and the no-shows you've made peace with stop being inevitable.
Run registration, calendar invites, T-7d / T-1d / T-1h reminders, and post-event follow-ups on a channel attendees actually open. Multi-event mode for agencies running 20+ events a year.
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Built on the technology businesses trust
🤩 We're Official
Official WhatsApp
Business Cloud API
0% markup on
Meta charges
Custom domain
supported
Sound familiar?
Three things every D2C team already lives with
Manual reminder sends eat a marketer's afternoon
Every event needs T-7d, T-1d, and T-1h reminders. Across 4 events a month, that's 12 manual sends — each requiring template approval, list segmentation, and timing.
Post-event recordings get lost
The recording goes out by email the next day; the click-through is 11%. Half the attendees never see it; the no-shows definitely don't.
The four pieces
What you actually need to run WhatsApp marketing at scale
Reminder drip cadence built for events
T-7d, T-1d, T-1h reminders on WhatsApp instead of email. Each reminder includes the join link, the speaker lineup, or the agenda — whichever is most relevant at that timing.
Registration in WhatsApp itself
Click-to-WhatsApp ads or a website button; the registration flow captures name, email, and any custom fields. The attendee never leaves WhatsApp. The data writes to your event platform via webhook.
Multi-event mode for agencies & series
An events agency or a brand running a webinar series gets sub-tenants per event. Templates are clonable across events. The agency dashboard sees attendance and engagement across the full calendar.
Post-event recording, slides, and follow-up
Same-day delivery of recording link, slides PDF, and any post-event survey or download. Attendance status (joined / partial / no-show) drives different post-event nudges.
Scenario 01 / Registration
Register attendees without the dropoff at the form.
Click-to-WhatsApp from a Meta ad or a website button drops the prospect into a quick registration flow. Name, email, and any custom field captured in three taps. A confirmation message goes out instantly with a calendar invite, the agenda, and a "save the link" prompt. Registration data writes to Eventbrite, Hopin, or your custom platform via webhook.
- Click-to-WhatsApp registration with paid- and free-event variants
- Calendar invite delivered as an .ics link or button
- Webhook to Eventbrite / Hopin / Airmeet / your custom event platform
- Razorpay or Stripe payment-link integration for paid events
app.whatsmark.io/flows/builder
Blocks
⚡
Trigger
💬
Message
↕
Condition
⏱
Delay
🎯
Action
TRIGGER
Keyword: "PROMO"
Incoming message match
MESSAGE
Welcome + menu
Template: welcome_v2
CONDITION
Button reply?
Check: reply_id
YES
Send offer
NO
Assign agent
Scenario 02 / Reminder drip
A T-7d, T-1d, T-1h cadence that lifts attendance from 20% to 60%.
Each reminder lands at the right moment with the right context. T-7d nudges with the speaker lineup. T-1d sends the agenda and a "block your calendar" reminder. T-1h sends the join link and a 60-second pre-event tip. The cadence runs from a single template configured per event series — no manual sends.
- Three pre-configured reminder steps with configurable timing per event
- Per-step content variants (speaker lineup, agenda, join link)
- Stops automatically when attendance is recorded
- Stop also on opt-out reply (STOP)
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Scenario 03 / Post-event
Recording, slides, and follow-up scoped to whether they actually attended.
Attendance status from your event platform (joined / partial / no-show) drives three different post-event flows. Joined attendees get the recording, slides, and a feedback request. Partial attendees get the recording with a "missed the second half? here's the recap" message. No-shows get a "we missed you — here's the recording, plus a discount on the next session" nudge.
- Attendance webhook from your event platform drives flow branching
- Recording, slides, and certificate-of-attendance delivery in one message
- Feedback / NPS capture as buttons; results land in your dashboard
- Re-engagement template for no-shows with discount on the next event
app.whatsmark.io/flows/builder
Blocks
⚡
Trigger
💬
Message
↕
Condition
⏱
Delay
🎯
Action
TRIGGER
Keyword: "PROMO"
Incoming message match
MESSAGE
Welcome + menu
Template: welcome_v2
CONDITION
Button reply?
Check: reply_id
YES
Send offer
NO
Assign agent
What your customers see
Sample messages for webinar hosts and event organizers
Real WhatsApp threads — drop them straight into your account or use them as starting templates.
Registration confirmed
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🎟️ Registered — Growth Marketing Summit 2026. 📅 Wed, 24 May · 6:00 PM IST · 90 min 💻 Online via Zoom · Free entry 🎤 Speakers: Anjali Rao, Sahil Mehta, Karan Goyal
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Pre-event reminder (T-1h)
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Opening Zoom… see you in there 🎤
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No-show follow-up
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Hi Aarav — we missed you at yesterday's Growth Marketing Summit. The recording is up: gms.io/replay/wed24may 📎 Slides PDF attached.
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Integrations
Plays well with what you already use
Connect natively where we have direct adapters. Use webhooks or our REST API for everything else. Honest status flags — we don't pretend an integration ships when it doesn't.
Zo
Zoom
Video / event platform
Via API / WebhookGo
Google Meet
Video
Via API / WebhookEv
Eventbrite
Event platform
Via API / WebhookHo
Hopin / Airmeet
Virtual events
Via API / WebhookRa
Razorpay / Stripe
Payments (paid events)
AvailableBy the numbers
Specific, defensible, no fabricated stats.
Open rate
98%
WhatsApp industry-wide; vs ~20% for email
Typical attendance lift
2–3×
vs email-only reminders (industry benchmarks)
Unlimited events
Always
No per-event fee — run a quarterly series or daily webinars
FAQ
Common questions, honest answers
Don't see your question? Email me at [email protected] — I read and answer every one personally.
Email reminders open at ~20%, and the T-1h email almost never gets read in time. WhatsApp reminders open at ~98%. Pair that with a 3-step drip (T-7d, T-1d, T-1h) where each step delivers the most relevant content at the right moment, and attendance typically lifts 2–3× compared to email-only reminders.
Yes. WhatsMark accepts and emits webhooks; most major event platforms (Zoom, Eventbrite, Hopin, Airmeet) expose registration and attendance webhooks. The pattern: registration captured in WhatsApp → write to event platform → attendance status flows back → post-event flow branches by attendance status.
Yes. Connect Razorpay or Stripe; the registration template includes a payment link generated dynamically. Once payment captures, the attendee gets the confirmation, calendar invite, and pre-event drip. No payment, no confirmation — automatic gating.
Reseller plan. Each client is a sub-tenant with its own contact list, event templates, and inbox. The agency runs everything from one master dashboard. Clients see only their own data; the agency rolls up across all of them. White-label custom domain hides WhatsMark from the end-attendee.
Registration itself is the opt-in for that specific event. Promotional broadcasts to your contact base for future events require a separate marketing opt-in, captured at registration time via a checkbox in the flow. WhatsMark tracks opt-in state per contact.
Yes — WhatsApp templates support PDF attachments, links, and interactive buttons. A single post-event template can deliver the recording link, the slides PDF, and a buttoned NPS question. Responses to the NPS question route back to your dashboard.
Each event runs as its own broadcast list (or sub-tenant for agencies). The same contact can be on multiple lists; the contact's profile shows all events they've registered for, attended, or no-showed. This drives smarter re-engagement (e.g. "you've shown up to 4 of 5 — here's a VIP pass to the next").
Industries we also serve
Different industry? Same playbook, tuned for fit.
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