The shortfall between the number of guests or rooms contracted and those actually used, which may incur a penalty fee.
Attrition is most common in hotel room blocks and catered events where the venue commits resources based on a guaranteed minimum number. If the final headcount falls below the contracted minimum, the client typically pays a fee for the unused capacity. Most venues allow 10–20% attrition before penalties apply. Understanding attrition clauses is essential when managing group bookings or conference hotel blocks.
Run Sheet
A minute-by-minute timeline of an event listing every activity, responsible party, and technical cue.
Run of Show
The master document detailing every segment of a live event in sequence, including durations, cues, and owners.
Call Time
The designated time when staff, performers, or vendors must arrive at an event venue.
Production Schedule
A macro-level timeline covering all phases of an event — from venue access through setup, the event itself, and bump-out.
Day-of Timeline
A simplified version of the run sheet for clients or speakers showing when things happen without technical detail.
Event Brief
A written document given to vendors and suppliers summarising the event's objectives, audience, format, budget, and logistics.