initial response; first response
Often used in business, IT, and emergency contexts for the first actions taken when an incident or request occurs.
If the initial response to an outage is delayed, the damage will spread.
We distributed the initial response manual to all employees.
Similar meaning, but 初期対応 emphasizes the early stage of a process, while 初動対応 focuses on the very first actions taken.
Compound of 初動 (first move, initial action) and 対応 (response, handling).