Definition: A bid strategy is the method an advertiser uses to determine how much to bid in a paid advertising auction for each impression, click, or conversion. Bid strategies range from fully manual (the advertiser sets a fixed max CPC for each keyword) to fully automated (the platform’s algorithm dynamically adjusts bids in real time to meet a specified performance goal). The choice of bid strategy is one of the most impactful decisions in paid search campaign management.
Why It Matters: The bid strategy directly determines where ads appear, how often they show, and what each result costs. An inappropriate strategy — for example, maximising clicks when the goal is conversions — wastes budget and generates vanity metrics without business impact. Conversely, the right smart bidding strategy, given sufficient conversion data, can dramatically outperform manual bidding by adjusting bids in real time based on auction signals (device, location, time, audience, query) that no human manager can process at scale. Choosing the right bid strategy for a campaign’s objective and data maturity is a foundational Google Ads skill.
How It Works: Google Ads offers several bid strategies: Manual CPC (advertiser sets max bid per keyword — full control, no automation), Enhanced CPC (manual bids adjusted automatically for likely conversions), Maximise Clicks (automated — gets as many clicks as possible within budget), Maximise Conversions (automated — gets as many conversions as possible within budget), Target CPA (automated — aims to achieve conversions at a specified cost per acquisition), Target ROAS (automated — aims to achieve a specified return on ad spend), and Maximise Conversion Value (automated — maximises total conversion value). Smart bidding strategies (Target CPA, Target ROAS, Maximise Conversions) require sufficient conversion history — typically 30–50 conversions per month — to perform effectively. New campaigns typically start with manual or maximise-clicks strategies while building data.
Related: Pay-Per-Click, Target CPA, Target ROAS, Quality Score, Google Ads Smart Bidding