“You don’t need any other apps. Everything is connected and continuously developed. We really value their support for our events and the flexibility to customize.”
Miloslav TučekCommunication and Event Specialist, Česká spořitelna
One model for every capacity-driven session
Handle registration, capacity, and choice logic for workshops, 1:1 slots, and bookable activities, inside the same agenda that runs the event.
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30-minute call.
Tailored to your events.
4.7 on Capterra · verified reviews
Tailored to your events.
Used by teams filling workshops, tracks and 1:1 slots without oversells
The operational reality
Once you run parallel sessions, capacity becomes the hard problem
Workshops fill up. Two parallel tracks force a choice. A 1:1 consultation or a test drive needs a specific time slot, not a whole session. Teams end up running this through a patchwork: a form tool for sign-ups, a separate booking app for slots, a spreadsheet for overrides, and manual work to reconcile it all.
Sign-ups today
On Happenee
A form tool, a booking app and an override sheet
Sessions, blocks and slots in one model
Two parallel tracks force manual juggling
Registration blocks make the choice explicit
1:1 slots managed in someone’s calendar
Time-slot generation with per-slot capacity
What it does
Capacity as a structured property of the agenda itself
Control registration per session
Each session carries its own rules: capacity, unregistration window, group eligibility, confirmations and calendar files, enforced automatically so a full session is blocked, never overbooked.
Bundle sessions into a choice
Registration blocks group parallel sessions into “pick N of M” logic: choose one of three, two of five, and the choice is enforced in the app.
Split a window into slots
Break a session window into bookable time slots for 1:1 meetings, test drives, consultations and rentals, each with its own capacity and active/inactive toggle.
Who sees it, who may take a seat
Whether a group can see a bookable session and whether it may claim a seat in it are independent gates, and registering adds the attendee to a group automatically, so segmented communication follows the sign-up.
Across the event lifecycle
Capacity set once, counted to the last seat
01
Set the capacity model
Decide per session: individual cap, choice block, time slots, or a combination
Configure defaults at the session-type level; override individual sessions where needed
Set unregistration windows that match operational deadlines: catering, materials, room setup
Restrict registration to specific audience groups where sessions are gated
Build sessions ahead of time and hold registration closed until an announced opening moment
02
Run it live
Attendees register for workshops and book time slots from the event app
Capacity, eligibility and choice rules are enforced automatically
Deactivate individual slots or sessions as conditions change; existing registrations are preserved
03
Close the loop
Export registrations per session for attendance reconciliation and follow-up
Auto-assigned groups power post-event communication segmented by workshop attended
Capacity decided at registration
Blocks make the choice explicit
Bundle parallel sessions into a registration block: each attendee picks one, capacity counts down live, and the decision is data, not e-mail.
Windows split into slots
Generate time slots from one window: test drives, consultations, mentoring, each slot with its own capacity and confirmation.
In practice
What a capacity model looks like on the ground
Test drives on a 15 minute grid
A brand activation runs two demo cars through an afternoon. Set one session window, a 15 minute slot length and one seat per slot, and the grid builds itself. Attendees book from the app, every booking confirms with a calendar file, and when a car goes off for cleaning that slot is deactivated without disturbing the bookings already taken.
Guided tours on the same model
Guided tours of the venue, mentoring tables and advisory consultations all run on the window-into-slots model. Only the slot length and the seats per slot change, so one coordinator operates every bookable activity from the same screen.
Opened at an announced moment
Workshops can be built well in advance and held closed, so the earliest buyers do not quietly take every seat. At the announced moment registration opens to everyone already signed up, and capacity counts down from a level playing field.
Key features
Capacity the agenda can actually enforce
Per-session capacity
Automatic blocking once a session is full, with the optional display of remaining seats.
Unregistration rules
Relative to session start (e.g. 24 hours before) or a fixed cutoff date.
Registration blocks
A maximum number of sessions per attendee, choice enforced in the app.
Time-slot generation
Built from session window, slot length and break length, with per-slot capacity and an active/inactive toggle.
Group gates & auto-assignment
Registration-for-groups and visibility-for-groups as independent gates; registering feeds segmented e-mail, push and in-app content.
Confirmations & organizer alerts
Confirmation e-mail with an .ICS attachment on registration, plus optional organizer notifications on every registration change.
What you get
Capacity logic that holds, without stitching tools
30-minute call · tailored to your events
Enforced at the source
Capacity is enforced where the session lives, no overbooking and no manual reconciliation after the fact.
One model for every format
Structured choice logic, 1:1 meetings, test drives and bookable activities all run on the same model as workshops.
Communication follows sign-up
Segmented communication without manual list-building, groups follow the sign-up, with a full attendee record per session ready for export.
Trusted across industries running events as a system
“They’re constantly rolling out new features and truly listen to their customers and their feedback.”
Markéta UhrováStart it Manager, ČSOB
“A really strong partnership. They’re fast, easy to talk to, and they understand our needs and the challenges behind them.”
Marie JestříbkováEvent Manager, Generali Česká pojišťovna
