How to Promote Your Event on LinkedIn with Attendee Advocacy (Eventbrite, Luma, Bizzabo, Cvent)

Your attendees are your most powerful marketing channel. Each one has a LinkedIn network averaging 500+ professional connections — decision-makers, peers, and potential registrants in the same industry. If even 20% of your attendees shared that they're attending, you'd reach tens of thousands of qualified prospects for free.

This is attendee advocacy: turning registrations into organic promotion. And with the right setup, it happens automatically — regardless of which event platform you use.

This guide covers how to set up automated attendee advocacy on the four most popular event platforms, the ROI math behind it, and tactics to maximize share rates.

Why LinkedIn Attendee Advocacy Is the Highest-ROI Event Promotion Channel

LinkedIn is where B2B professionals discover and decide to attend events. The numbers make the case:

• 1 billion+ LinkedIn members, with 65+ million decision-makers
• Peer-shared content gets 8x more engagement than brand-published content
• Event recommendations from connections convert 4x higher than paid ads
• Cost per registration drops 80%+ compared to LinkedIn Ads

The challenge has always been getting attendees to actually share. Manual outreach is slow. Email blasts get ignored. Generic "share this event" buttons get clicked by less than 2%.

The solution is automated attendee advocacy: a system that invites every new registrant to share a branded, personalized "I'm attending" card on LinkedIn — without any manual work from your team. For a deep dive into the concept, see our complete guide to attendee advocacy.

How Attendee Advocacy Works

The typical advocacy funnel:

1. Someone registers for your event on Eventbrite, Luma, Bizzabo, or Cvent
2. They automatically receive a personalized email with a link to their sharing card
3. They click the link and share a branded "I'm attending" card on LinkedIn — one click
4. Their 500+ connections see the event
5. A percentage of those connections click through and register
6. Those new registrants enter the same flow
7. The cycle compounds

Every share is a personal endorsement — not a corporate ad. That trust signal is what drives the conversion rates that paid channels can't match.

Platform Setup Guides

Each event platform integrates with Attendir differently. Here's how to set up advocacy on each one.

Eventbrite: OAuth + Webhook Auto-Email

Eventbrite's integration is the most seamless, using OAuth for secure authorization.

Step 1: Connect via OAuth. From your Attendir dashboard, click "Connect Eventbrite." You'll be redirected to Eventbrite's secure OAuth flow — authorize with one click. No API keys, no developer setup.

Step 2: Import your event. All your Eventbrite events appear automatically. Click "Import" and Attendir pulls in the event name, dates, location, and logo. Works with events already live and selling tickets.

Step 3: Create your sharing campaign. Set your brand colors, logo, and custom share message. This is the card your attendees will share on LinkedIn. Takes under 5 minutes.

Step 4: Enable auto-email. Toggle on "Auto-email new Eventbrite registrants." Attendir registers a webhook with Eventbrite so that every ticket purchase triggers a personalized share invitation email automatically.

What makes Eventbrite unique: The webhook handles group registrations — if someone buys 5 tickets, all 5 attendees get individual share invitations. No one falls through the cracks.

Learn more on the Eventbrite integration page.

Luma: API Key + Webhook

Luma uses API key authentication — simple and fast to set up.

Step 1: Get your API key. In your Luma account, go to Settings > Developer > API Keys. Generate a new key and copy it. This is the only credential you need.

Step 2: Connect in Attendir. Go to Integrations > Luma, paste your API key. Connection validates instantly — you'll see a green "Connected" status within seconds.

Step 3: Import and launch. Select your Luma event, set up the sharing campaign, and enable auto-email. Every new Luma registration triggers a share invitation via webhook.

What makes Luma unique: The API key approach means zero OAuth redirects — ideal for organizers who want the fastest possible setup. Connection takes under 30 seconds.

Learn more on the Luma integration page.

Bizzabo: OAuth + Embeddable Widget

Bizzabo's integration leverages OAuth and offers an additional option: embedding the share widget directly on your Bizzabo confirmation page.

Step 1: Connect via OAuth. One-click authorization — no API keys to copy, no webhooks to configure manually. Your Bizzabo events appear in Attendir's dashboard immediately.

Step 2: Customize the sharing experience. Attendir generates a personalized, branded sharing page for every registrant — with their name on the card, a one-click share button, and a tracked link back to your registration page.

Step 3: Enable auto-email. Every new Bizzabo registrant automatically receives their personal sharing link via email.

Step 4 (optional): Embed the share widget. Bizzabo's website builder supports custom HTML blocks. Add Attendir's embeddable share widget to your confirmation page, and registrants see their card and share button immediately after completing registration — capturing shares at the moment of peak excitement.

What makes Bizzabo unique: The embed widget option captures shares at the highest-intent moment (right after registration), before the attendee leaves the page. This is especially powerful for Bizzabo's mid-to-large B2B events where attendees have 500-2,000+ LinkedIn connections.

Learn more on the Bizzabo integration page.

Cvent: Client Credentials + Confirmation Page Widget

Cvent is the dominant platform for large conferences, trade shows, and corporate events. The integration works via client credentials.

Step 1: Connect your Cvent account. Attendir connects to Cvent and imports your events. The client credentials approach is designed for enterprise environments.

Step 2: Set up auto-email. When a new registration comes in, Attendir automatically generates a personalized sharing card and sends the registrant an email with their unique share link.

Step 3: Add the confirmation page widget. Cvent allows custom HTML in confirmation page templates. Paste Attendir's embed widget snippet into your template, and every registrant sees the share prompt immediately after completing registration.

What makes Cvent unique: Cvent events tend to have the highest ticket prices (€200-2,000+) and the most senior attendees, making each share especially valuable. A single share from a VP of Engineering at a major tech company reaches a network of equally senior professionals.

Learn more on the Cvent integration page. For a detailed comparison of how Attendir works with both Cvent and Bizzabo (including cost comparison vs. InGo), see our Cvent & Bizzabo attendee sharing guide.

The ROI Math

500-Person Event

1,000-Person Conference

Advocacy vs. LinkedIn Ads

Those 400 clicks from a 500-person event would cost €1,200-3,200 via LinkedIn Ads — and they'd convert at a lower rate because they're ads, not peer recommendations.

Calculate the ROI for your specific event with our ROI calculator. See real results from TEDAI Vienna and ViennaUP.

Tips for Maximizing Share Rates

Getting the system set up is the first step. Here's how to push share rates from 15-20% toward 30%+:

1. Capture the Moment of Peak Excitement

The best time to ask is immediately after registration. Attendir's webhook system sends the email within minutes — this timing is automatic. If you're using Bizzabo or Cvent, the embed widget captures shares even faster (on the confirmation page itself).

2. Make the Share Card Scroll-Stopping

Your share card is what appears on LinkedIn. Make it count:

• Use your event's strongest visual — the card should stop the scroll
• Keep the text short — "I'm attending [Event Name]" with date and location
• Include brand colors — consistency builds recognition
• Personalize with the attendee's name — it makes the share feel authentic, not corporate

3. Write Share Copy That Feels Natural

The LinkedIn post text should feel like something the attendee would naturally write — not marketing speak. Think "Excited to attend [Event]" not "Don't miss this incredible opportunity."

4. Add a Raffle for 75% More Shares

Attaching a prize draw to your sharing campaign transforms a passive request into an active opportunity. Share rates jump from 20% to 35%+ with a simple raffle — VIP upgrades, speaker dinner invitations, or sponsor product bundles all work well.

See our detailed guide on using raffles as a virality lever for setup instructions and prize ideas.

5. A/B Test Card Designs

Run multiple campaigns with different share card designs and copy. Small changes in the visual or text can significantly impact share rates. Track which version drives more shares and double down.

6. Don't Forget the Follow-Up

A single invitation converts 40-60% of the people who will ever share. A reminder email 48 hours later captures another 20-30%. Always send the follow-up.

Getting Started

Setting up attendee advocacy takes under 10 minutes on any platform:

1. Start your free 7-day trial (no credit card required)
2. Connect your event platform (Eventbrite, Luma, Bizzabo, or Cvent)
3. Import your event
4. Customize your sharing card and enable auto-email
5. Watch your attendees become promoters

Every Attendir plan includes all four platform integrations. The Lite plan starts at €390/month for 1 event. The Unlimited plan at €990/month removes all caps. See full pricing.

Your attendees already have the perfect audience for your event. Give them the easiest possible way to tell their network — and let the math do the rest.

Related reading:

• What Is Attendee Advocacy? The Complete Guide
• How to Increase LinkedIn Sharing at Conferences
• The Embeddable Share Widget Guide
• How to Increase Event Registrations with Social Proof
• Event Referral Programs Guide