Account Level
Link Google Analytics to Google Ads.
Set up conversion tracking (primary and secondary actions).
Configure billing information.
Campaign Level
Choose appropriate campaign type (Search, Display, Performance Max).
Define daily budget and bidding strategy (e.g., Maximize Conversions).
Set location and language targeting.
Ad Group & Keyword Level
Structure ad groups tightly by theme.
Add extensive negative keyword list.
Ensure at least 3 responsive search ads per ad group.