"Match each auto-bidding strategy to the right campaign goal" is a question format from the Google Ads certifications, and it is also the decision every B2B advertiser makes when setting up a campaign. Pick a strategy that optimizes for the wrong thing and Google will very efficiently deliver results you did not want, such as cheap clicks from people who never request a demo.
Short answer, using Google's own goal mapping: for conversions (leads, sign-ups) use Target CPA or Maximize Conversions; for conversion value (revenue, profit) use Target ROAS or Maximize Conversion Value; for website traffic use Maximize Clicks; for visibility on the search results page use Target Impression Share; for brand awareness on display use viewable CPM (vCPM); for video views use cost per view (CPV). Google's help article starts from the same principle: "Depending on which networks your campaign is targeting, and whether you want to focus on getting clicks, impressions, conversions, or views you can determine which strategy is best for you." Source: Google Ads Help, Determine a bid strategy based on your goals (checked October 2026).
The Full Mapping
| Campaign goal | Bid strategy | What it optimizes | Type |
|---|---|---|---|
| Conversions at a cost per action you set | Target CPA | Conversions while aiming at your target cost per action | Smart Bidding |
| As many conversions as the budget allows | Maximize Conversions | Conversions, spending the full budget | Smart Bidding |
| Conversion value at a return you set | Target ROAS | Conversion value while aiming at your target return on ad spend | Smart Bidding |
| As much conversion value as the budget allows | Maximize Conversion Value | Conversion value, spending the full budget | Smart Bidding |
| Website traffic | Maximize Clicks | The most clicks within an average daily budget | Automated |
| Traffic at a set click cost (Demand Gen) | Target CPC | As many clicks as possible at a specific cost per click | Automated |
| Visibility on Google Search | Target Impression Share | Showing at the absolute top, top, or anywhere on the results page | Automated |
| Brand awareness on the Display Network | Viewable CPM (vCPM) | Viewable impressions, priced per 1,000 | Manual |
| Video views or consideration | Cost per view (CPV) | Video views and interactions | Video bidding |
Three details in that table trip people up. First, Target CPA, Target ROAS, Maximize Conversions and Maximize Conversion Value are the four Smart Bidding strategies, which Google defines as strategies that "use Google AI to optimize for conversions or conversion value in every auction" (About Smart Bidding). Second, Google's goals article lists Target CPC with a link to its Demand Gen documentation, so do not expect it as a standard Search option. Third, Google describes vCPM as a manual bidding strategy, so in a certification question that asks specifically about automated strategies, the visibility answer for Search is Target Impression Share.
Names also changed recently. The Smart Bidding article notes that starting in June 2026, "Maximize conversions with a Target CPA" is relabelled "Target CPA" and "Maximize conversion value with a Target ROAS" becomes "Target ROAS", and that the underlying bidding behavior stays the same. Older guides and certification prep material still use the long names.
How Much Conversion Data Each Strategy Needs
Google does not publish one hard minimum for every campaign type, but it does give guidance. The goals article says "some Smart Bidding strategies rely on a minimum volume of historical conversion data, depending on the campaign type", and the Smart Bidding article recommends judging performance over periods with at least 30 conversions, such as a month or longer, and 50 conversions for Target ROAS. Google also suggests Maximize Clicks for new campaigns that lack the conversion data Target CPA or Target ROAS need.
For B2B accounts that sell to a narrow market, this is the real constraint. A campaign that produces a handful of demo requests a month is not giving any algorithm much to learn from, whatever the strategy is called. Our view on what to try, in this order:
- Run Maximize Conversions without a target until you know what a lead actually costs.
- Group related campaigns under one portfolio bid strategy so they pool conversion data.
- Count one earlier but still meaningful action as a primary conversion (for example a pricing page form or a "talk to sales" chat start), as long as it actually leads to pipeline.
- Use Maximize Clicks with a maximum CPC limit, accepting that you are buying traffic, not leads, and judging the campaign on what the landing page does with it.
The B2B Problem: What Counts as a Conversion
Smart Bidding only knows what you tell it. Google's note on the goals page is direct: make sure "the conversion actions you want to optimize for are set as 'Primary'." In B2B, this is where most bidding goes wrong.
- If newsletter signups and demo requests are both primary, Target CPA will find the cheapest conversions, which are usually newsletter signups.
- If only closed deals are tracked, the campaign sees too few conversions to learn from.
- If the demo form fires a conversion on page load instead of on submit, the algorithm optimizes for views of the form page.
- If a thank-you page can be reloaded or bookmarked, one lead gets counted several times unless the conversion action counts once per click.
A workable middle ground for many B2B accounts: make the demo or contact request the primary action, import qualified-lead or opportunity stages from the CRM with a value attached, and move to a value-based strategy (Target ROAS or Maximize Conversion Value) once enough of those values come back. Our guide to connecting website data to your CRM covers the plumbing.
When not to move to value bidding: if your CRM values are placeholders (every lead gets the same amount), Target ROAS has nothing real to optimize and behaves like Target CPA with extra noise. Stay on conversion-based bidding until the values actually differ by deal size or stage.
The Landing Page Sets the Ceiling
A bid strategy decides how much to pay for a click. The landing page decides how many of those clicks become conversions. Example arithmetic: if clicks cost $10 and the page converts at 2%, each lead costs $500. Set a Target CPA of $200 and the strategy has to find clicks that convert at 5%, which mostly do not exist, so spend drops. Lift the page to 4% and the same $10 clicks produce leads at $250, much closer to the target. Raising the conversion rate is often a faster way to get a Target CPA campaign spending its budget than cutting bids.
That is why we treat bid strategy and landing page work as one project. Start with the page changes in our guide to B2B landing page optimization, check the ad-to-page match described in what makes a good landing page experience, then set the target from the conversion rate you actually measure. The conversion rate calculator works that number out per campaign.
Paid search traffic in B2B is also mixed: some clicks come from target accounts, many do not. Markettailor's visitor identification shows which companies the paid clicks came from, which tells you whether a campaign with an acceptable CPA is reaching the accounts sales actually wants.
Worked B2B Example (Illustrative)
Illustrative setup: a B2B software company runs three campaigns.
- Brand search. Goal: own the top of the results page for its own name. Strategy: Target Impression Share at the absolute top of the page, with a maximum CPC limit so a competitor bidding on the brand cannot drive costs up without limit.
- Category search ("sales forecasting software"). Goal: demo requests. The account gets about 40 demo requests a month across all campaigns. Strategy: Maximize Conversions first, to learn what a demo actually costs; after a month with 30 or more conversions in the campaign or portfolio, switch to Target CPA set close to the observed cost rather than an aspirational one.
- Display remarketing. Goal: bring evaluators back to the pricing page. Strategy: Maximize Clicks with a maximum CPC limit during a short launch period, then Target CPA once remarketing conversions accumulate.
Each campaign optimizes for one thing, and none of them is asked to do a job its strategy cannot measure. The usual mistake would be running the category campaign on Maximize Clicks because it "gets more traffic": it will, mostly from researchers and students searching the category term.
Checklist Before You Switch Strategies
- Primary conversion actions reflect real pipeline, not micro-actions.
- Conversion tracking fires on submit, counts once per lead and can be matched against the CRM.
- The landing page conversion rate is measured, not assumed. The A/B test calculator helps you size page tests before changing targets.
- You are not changing the strategy and the landing page in the same week, or you will not know which change moved results.
- The new target is based on recent actual cost, not on the number finance would like.
- If you want a forecast first, Performance Planner's requirements for Search, Shopping and Performance Max campaigns include no bid strategy change in the last 10 days (About Performance Planner). See what Performance Planner does.
Frequently Asked Questions
Which auto-bidding strategy matches a goal of more leads?
Target CPA if you have a cost per lead you want to hit, or Maximize Conversions if you want as many leads as possible within your budget. Both need the lead events set as primary conversion actions.
Which bidding strategy is best for website traffic?
Maximize Clicks, which Google calls "the simplest way to bid for clicks": you set an average daily budget and Google Ads manages bids to get as many clicks as possible within it. In Demand Gen campaigns, Target CPC lets you aim at a specific cost per click instead.
Which bidding strategy fits brand awareness?
For visibility on Search results, Target Impression Share. For awareness on the Display Network, viewable CPM (vCPM), which sets the most you pay per 1,000 viewable impressions. To see how far a budget goes at a given rate, use our CPM calculator.
What is the difference between Target ROAS and Maximize Conversion Value?
Both optimize for conversion value. Target ROAS aims at a specific return on ad spend, while Maximize Conversion Value spends the full budget to get the most value it can. Before setting a target, work out your break-even point with a ROAS calculator.
How many conversions does Smart Bidding need?
Google recommends evaluating Smart Bidding over a period with at least 30 conversions, such as a month or longer, and 50 conversions for Target ROAS. Requirements vary by campaign type, so check the article for the specific strategy.