Bidding Strategies

Maximize Conversion Value vs Manual Bidding: Prices or Predictions

In short: Manual bidding sets one price per keyword or placement and holds it. Maximize Conversion Value throws that table away and prices each auction by predicted revenue, which means the work shifts from maintaining bids to maintaining a conversion value pipeline. Without real values, the switch buys you nothing but volatility.

By the AdFlint research team · Fact-checked against current Google and Meta platform behavior · Last reviewed July 2026

Manual Bidding

Setting bid amounts yourself rather than delegating them to the platform, adjusting by keyword, ad group, or placement on your own schedule.

You control the number and the platform controls nothing beyond the auction itself. That gives clean cause and effect for testing, works on accounts with too few conversions for automation to learn from, and keeps spend predictable. As accounts grow, the ceiling shows: you cannot adjust per auction. The mistake is equating manual with cheaper, when in practice it mostly means slower to react.

Full definition

Maximize Conversion Value

Automated Google strategy that pursues the highest total conversion value within the budget, with an optional target ROAS to constrain efficiency.

It needs genuinely different values passed with your conversions, otherwise every conversion looks identical and it degenerates into Maximize Conversions. Ecommerce accounts and lead-gen accounts with scored leads use it to push toward high-value orders rather than cheap ones. The usual failure is a hard-coded value on the conversion action, which makes the value model meaningless while reports still display a confident ROAS figure.

Full definition

Side by side.

The differences that actually change what happens in your account.

	Manual Bidding	Maximize Conversion Value
Where effort goes	Maintaining a bid table that grows with the account.	Maintaining accurate conversion values and campaign structure.
Bid variation	Only when you edit.	Per auction, by predicted order size.
Prerequisite	None beyond attention.	Real, varied conversion values reaching the account.
Spend behavior	Follows your bids; underspending is common.	Built to consume the budget in pursuit of value.
Health metric	CPC, clicks, position.	Conversion value against spend over a full conversion window.
Failure mode	Bids that go stale while the auction moves.	A hard-coded value, which makes the strategy and its reporting hollow.

What actually separates them.

Manual bidding assumes every click on a keyword is worth the same; value bidding assumes the opposite and prices accordingly, which is a different model of your business rather than a different setting.

The prerequisite work is not comparable: manual bidding needs discipline, value bidding needs a data pipeline sending genuine transaction amounts.

CPC stops being a useful health metric after the switch, because rising click prices on valuable auctions are the mechanism rather than a symptom.

Manual bidding gives clean cause and effect for tests; value bidding re-enters learning after material edits, so change control matters more.

Manual bidding degrades slowly and predictably, while value bidding fed bad values degrades quickly and confidently, complete with a plausible looking ROAS column.

Which one should you use?

Use Manual Bidding when

No revenue value is passed with conversions, and building that is not imminent.
Volume is thin enough that a value model has nothing to learn from.
A test window where a fixed price keeps the result readable.
Spend must stay predictable for budgeting or contractual reasons.

Use Maximize Conversion Value when

Real transaction values arrive with each purchase and vary meaningfully.
Order sizes differ enough that treating clicks as equal is demonstrably wrong.
You are accountable for revenue and return rather than for cost per click.
Bid maintenance has become a chore that no longer changes outcomes.

Common questions.

What has to be true in tracking before leaving manual bids for value bidding?

Values must be real transaction amounts rather than a default, currency must be correct, duplicate and test conversions must be excluded, and the conversion window must be long enough to credit purchases completing days after the click. Manual bidding tolerates sloppy values because it never reads them; value bidding reads nothing else.

Can I keep manual bids on some campaigns and value bidding on others?

Yes, and it is a common structure. Brand or low volume campaigns often stay on fixed bids while the revenue carrying campaigns run value bidding. Keep them in separate campaigns rather than separate ad groups, since bid strategy is set at campaign level and mixed intent inside one campaign muddies what the model learns.

Why does spend jump when I switch?

Manual bids frequently leave budget unspent, while value bidding is built to use the budget in pursuit of value. The jump is a budget behavior change rather than a price increase per se. Set the budget to what you actually intend to spend before switching, because after the switch it becomes the primary control.

Or stop choosing between them.

AdFlint picks the setting, writes the ads, and keeps optimizing inside the Google and Meta accounts you already own.

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