Setup
We build the agent, write to your attendees and run it through the event. Your attendees install nothing.
Your team sends
XLSAttendee list XLSProgramme XLSSponsors and exhibitors One checkbox on your formYou get back
FILEThe post-event report XLSThe follow-up listLast updated 8 October 2026
The exports you already have.
Add the LinkedIn URL if you collect it. Sena then knows each attendee before the first message.
Include end times, because attendees ask what runs until when.
A sponsor with an empty description gets no recommendations.
Excel or CSV files. If your registration platform has an API, we connect to it instead.
Your registration form
Phone number
Example wording. We give you the words for the checkbox.
Put the phone field and an opt-in on your registration form, then tell your attendees about Sena.
76%
opted in when it sat on the form
Les Entrepreneurs Haute-Garonne
~6%
added quietly, never announced
Your promotion decides how many attendees you reach. Meta asks every business for an opt-in before it sends WhatsApp messages. Its opt-in rules for businesses explain what the checkbox needs to say.
Nobody on your team staffs the chat.
One agent, two doors. Attendees reach the same agent on WhatsApp or in a browser. It knows your programme, your sponsors and your venue.
A first message. Sena writes to every registrant with a phone number and asks what they came for.
A plan for each attendee. Sessions, sponsors and people to meet, each with the reason it fits. Sena answers before and during the event, from your own data.
A question that needs a person goes to your team. You know who comes and why, and Sena sends each attendee to the right sessions and exhibitors.
Hi, I am the agent for your event. What do you want to get out of the two days?
Meet payment teams at banks.
2 sessions, 1 stand, 2 people to meet, each with the reason.
Example conversation
Two files to keep.
The report shows who came and why, what they asked, where Sena sent them, and who showed up. See the report template, filled in with FOST London 2026. The follow-up list holds each attendee who talked to Sena, with their goal in their own words. Sena has no live connection to your CRM today, so your team imports the spreadsheet. The rows above are examples.
Three starting points. None changed their registration platform.
FOST London 2026
Six API and AI conferences under one badge
Collected phone numbers at registration. Sena wrote to 1,344 registrants.
Read the case studyVivaTech 2026, Hub Institute
Guided executive tours of a trade show floor
Put a QR code at the end of each tour. There was no attendee list.
Read the case studyLes Entrepreneurs Haute-Garonne
Seated business meetings for 209 members
Put the opt-in on the registration form and pushed it in emails. 76% opted in.
Read the case studyAny
Any platform works if it can export a spreadsheet. You keep registration, badges and your event app.
Apps for your attendees
0
They use WhatsApp or the web chat in a browser, and the same agent answers in both places.
2 weeks
Events have gone live with us in under two weeks. Start earlier if you can, because attendees who hear from Sena days before the event have time to plan.
Our WhatsApp number already has Meta approval, so you skip the wait for a new number. If you run Cvent, read when to add Sena next to it and skip the migration. Read what works on WhatsApp for events, and what breaks. For consent in the UK, the ICO guidance on consent covers the opt-in. We publish the companies that handle attendee data for us.
Three exports: your attendees, your programme and your sponsors. On your registration form, you add the phone field and an opt-in, and we do the rest.
No. An Excel or CSV export is enough. If your registration platform has an API, we connect to it instead. You keep your registration platform, your badges and your event app.
Events have gone live with us in under two weeks. Our WhatsApp number already has Meta approval, so you do not wait for Meta.
Yes, as a spreadsheet that you import, because Sena has no live connection to a CRM today.
Send us the change and Sena uses it. At FOST London 2026, talks that moved after our last update gave wrong answers in about 8 conversations, so send changes on the day too.
No. They use WhatsApp or the web chat in a browser, and the same agent answers in both places.
An opt-in at registration, a privacy notice, and a clear way for attendees to stop the messages. We publish the companies that handle attendee data for us.
Get a Sena agent for your next event.
Send us three exports. We do the rest. See the pricing.
Keep reading: Use cases: dinners, trade shows, conferences and tours · Post-event report template, with a real filled example · Event no-shows: data from 1,411 FOST London registrants