requiredstart

noun
UK /rɪˈkwaɪəd stɑːt/
US /rɪˈkwaɪərd stɑːrt/

A required start is a beginning that you must have before something can happen.

The game has a required start time, so please be on time.


OTHER MEANINGS

2. A setting that makes a program begin automatically when needed.

The app's required start setting launches it when the computer turns on.

3. A rule that a race or event must begin at a set moment.

The runners lined up for the required start of the marathon.

4. A first step that cannot be skipped in a process.

Checking your ticket is the required start before you board the train.