WhatsApp & Email Communication: Keep Every Attendee Informed

By Fast ID Team | February 15, 2026 | 6 min read

Send targeted messages to all attendees, checked-in guests, or pending registrations — directly from Fast ID via WhatsApp, Email, or SMS.

Communication is the Heartbeat of Events

Registration is just the beginning. Between sign-up and show-up, you need to maintain a conversation with your attendees. Venue changes, schedule updates, parking instructions, last-minute speaker additions — every piece of information needs to reach the right people at the right time.

Fast ID's Messaging Hub

Instead of juggling Mailchimp for emails, a separate WhatsApp Business app for messages, and an SMS gateway — Fast ID unifies all three channels in one dashboard.

Choose Your Channel

Email: Best for detailed communications, agenda PDFs, and ID card delivery.
WhatsApp: Best for time-sensitive updates, reminders, and quick responses.
SMS: Best for critical alerts to attendees who might not have internet access.

Target Your Audience

Don't blast everyone. Fast ID lets you segment your audience with precision:

All Attendees: General announcements like venue directions.
Checked-In Only: Mid-event updates like session room changes.
Pending Registrations: Payment reminders or registration completion nudges.
By Role: Send VIP-only dinner invitations or speaker-only briefing notes.

Compose and Send

Type your message, preview it, and send. 1 credit = 1 message delivered. You can purchase credit bundles at bulk discounts for large events. Check your credit balance anytime in Settings.

Automated Messages

Fast ID also sends messages automatically at key touchpoints:

Registration Confirmation: Welcome email with ID card and QR code.
Payment Receipt: Confirmation after successful payment.
Check-In Confirmation: Real-time notification when an attendee scans in.
Certificate Delivery: Automatic email after session completion.

Real-World Impact

Imagine sending a WhatsApp message to 500 attendees at 8 AM on event day: "Parking is available at Gate 3. Use your QR code for VIP parking access." With Fast ID, this takes 30 seconds and reaches everyone instantly.

"We sent 3 targeted WhatsApp messages during our event — a parking update, a lunch location change, and a post-event feedback link. Our attendee NPS score jumped 15 points compared to last year. Communication is everything." — Event Coordinator, Annual Trade Expo

Start Communicating Smarter

Your attendees shouldn't have to hunt for information. Bring the information to them — on the channel they prefer. Set up Fast ID's messaging hub for free today.

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