iMessage for Events
Keep attendees informed and engaged with iMessage. Send pre-event reminders, real-time schedule updates, session notifications, and post-event surveys with 30-45% response rates — the channel attendees actually read.
How It Works
Import Attendee List
Sync registrants from Eventbrite, Cvent, HubSpot, or your ticketing platform. Sendblue detects which attendees have iMessage for the richest delivery.
Segment by Ticket Type
Group attendees by ticket tier, session track, VIP status, or speaker role. Send the right logistical details to the right people.
Send Real-Time Alerts
Trigger session start notifications, schedule changes, venue directions, and emergency updates instantly to the right attendee segments.
Collect Feedback
Send post-event survey links via iMessage within minutes of the event closing. Get response rates 3-5x higher than email surveys.
Key Features for Events
Pre-Event Reminders
Send tiered reminders at 1 week, 1 day, and 1 hour before your event. Include venue address, parking maps as image attachments, and check-in instructions.
Real-Time Schedule Updates
Instantly notify attendees of session time changes, room swaps, or speaker cancellations. iMessage reaches people on their phones in seconds — no app required.
Session Notifications
Alert registered session attendees 10 minutes before their track begins. Send speaker bios and session materials via PDF attachment to build anticipation.
Speaker Introductions
Send a personalized iMessage with speaker headshot and bio to VIP attendees before keynote sessions. Create a premium experience that email cannot replicate.
Post-Event Surveys
Trigger survey links within minutes of event close. Two-way iMessage conversations let you ask follow-up questions and collect richer feedback than a form alone.
No A2P Registration Required
Skip weeks of SMS carrier registration. Unlike 10DLC, iMessage through Sendblue requires no campaign approval. Start messaging attendees immediately after signup.
By the Numbers
Send a Session Start Alert to Attendees
Trigger a 10-minute session notification to registered attendees, including the speaker's headshot and room location:
// Send session start alert with speaker photo
const response = await fetch('https://api.sendblue.co/api/send-message', {
method: 'POST',
headers: {
'sb-api-key-id': process.env.SENDBLUE_API_KEY,
'sb-api-secret-key': process.env.SENDBLUE_API_SECRET,
'Content-Type': 'application/json'
},
body: JSON.stringify({
number: '+14155551234',
content: 'Starting in 10 min: "AI in Healthcare" with Dr. Sarah Chen. '
+ 'Room B204, Level 2. Grab a seat early — capacity is limited!',
media_url: 'https://event.org/speakers/sarah-chen.jpg'
})
});
// Send post-event survey to all attendees
await fetch('https://api.sendblue.co/api/send-message', {
method: 'POST',
headers: { /* same headers */ },
body: JSON.stringify({
number: '+14155551234',
content: 'Thanks for joining TechSummit 2026! '
+ 'We would love your feedback (2 min): '
+ 'survey.techsummit.com/2026. '
+ 'Early bird tickets for 2027 go on sale this week.'
})
});Why iMessage Is the Best Channel for Event Communication
At a live event, attendees have their phones in hand — but their inboxes are flooded. A conference email has a 20% chance of being seen during the event day. An iMessage from your event team appears on the lock screen within seconds of being sent, with 98% open rates.
Event teams using Sendblue report dramatically better outcomes for last-minute schedule changes. When a keynote runs long and the next session shifts by 15 minutes, an iMessage blast to that session's registered attendees gets seen and acted on. An email alert goes largely unread until attendees are already standing at the wrong room.
Post-event, the same channel that delivered a premium experience all day becomes the fastest path to feedback collection. Survey links sent via iMessage within an hour of close see 4x the completion rate of email surveys sent the following morning.
Full Event Lifecycle Communication
Sendblue supports every phase of attendee communication:
- Registration Confirmation: Send a personalized welcome iMessage with ticket PDF, parking map, and agenda link immediately after purchase.
- Pre-Event Countdown: Automate reminders at 1 week, 48 hours, and 2 hours before the event. Each message adds new logistical context as the date approaches.
- Day-Of Logistics: Greet attendees with check-in instructions, WiFi credentials, and the day's schedule as an image when they arrive.
- Live Alerts: Push real-time updates for schedule changes, room swaps, emergency notices, and sold-out session waitlist openings.
- Networking Prompts: Connect VIP attendees with each other or with speakers via personalized introductions during break periods.
- Post-Event: Thank attendees, share recording links, and distribute survey forms within minutes of close to capture fresh impressions.
Connect Sendblue to your event tech stack via HubSpot, Zapier, or the REST API. Also see how travel and hospitality teams use Sendblue for guest communication.
Ready to deliver a better attendee experience with iMessage?
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Get API AccessFrequently Asked Questions
Can Sendblue handle messaging at the scale of a large conference or festival?
Yes. Sendblue's API is built for high-throughput messaging and can send thousands of iMessages per hour. For very large events, you can batch attendees into segments and stagger sends. Unlike SMS A2P 10DLC which has per-second throughput limits tied to carrier registration, iMessage through Sendblue scales without carrier bottlenecks.
Can Sendblue integrate with ticketing platforms like Eventbrite or Cvent?
Sendblue integrates natively with HubSpot, Salesforce, GoHighLevel, and other CRMs. For ticketing platforms like Eventbrite, Cvent, Hopin, or Bizzabo, you can connect via Zapier, Make, or the Sendblue REST API to trigger iMessages automatically when a ticket is purchased, a session is approaching, or a schedule changes.
Can attendees reply to event iMessages two-way?
Yes. Sendblue supports full two-way iMessage conversations. Attendees can reply with questions, session preferences, or dietary restrictions, and your team or an automated workflow can respond. You can also collect post-event survey responses via iMessage by prompting attendees with a question and capturing their reply via webhook.
Can I send different messages to different attendee groups at the same event?
Absolutely. Sendblue supports segmented messaging, so you can send different content to VIP ticket holders, sponsors, speakers, general attendees, or any other group you define. Each segment receives a personalized message with the relevant session times, access details, or networking invitations without the others seeing it.