> ## Documentation Index > Fetch the complete documentation index at: https://help.oskaros.com/llms.txt > Use this file to discover all available pages before exploring further. # Pending Orders > Pending orders reserve slots for 15 minutes during checkout. Pending orders temporarily hold selected slots while clients or admins complete checkout.\ This prevents double-bookings and keeps your schedule accurate. Pending Order Example *** ## How It Works for Clients * When a client adds a service, event, or class to the cart, Oskar **reserves the selected slot for 15 minutes**. * During this time, no one else can book the same resource or event seat. * If the client doesn’t complete checkout within the 15-minute window, the reservation automatically expires. * Once payment (or free checkout) succeeds, the booking becomes confirmed and appears instantly in the calendar. *** ## How It Works for Admins * When you begin creating a manual booking, Oskar also locks the selected slot for **15 minutes**. * If you get interrupted — for example by a walk-in, phone call, or another task — the slot remains safely held. * Pending admin orders appear in the system and can be reopened or completed before the timer runs out. *** ## Notes * Pending orders prevent two clients from holding (or checking out) the same slot at once. * All expired pending orders are removed automatically to free availability. * The 15-minute reservation duration is global and cannot currently be customized. *** Pending orders keep your schedule conflict-free — a small safeguard that makes your booking flow smooth, reliable, and fair for everyone.