It is thirty minutes before registration opens. Staff stand at the desk with lanyards in hand, and the attendee lookup screen will not load. The organizer expects an immediate fix: the contract promised 99.9% uptime. The vendor may restore it quickly. The agreement may also promise less than the organizer expects.
An event software SLA may sound reassuring, but organizers need to use it as a working document. One fictional outage runs through this article. It shows which clause controls what the event team may expect before anything fails.