Bidding Strategies

Enhanced CPC vs Manual Bidding: What Changed After the Wind-Down

In short: Manual bidding means you set the number and the platform does not adjust it. Enhanced CPC was manual bidding plus an auction-time multiplier based on conversion likelihood, and Google wound it down for Search and Display. In practice, campaigns that ran eCPC are now doing plain manual bidding whether anyone noticed or not.

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

Enhanced CPC

Legacy Google setting that raised or lowered manual bids at auction time based on conversion likelihood, now retired for Search and Display.

eCPC sat between manual and fully automated bidding, nudging your max CPC on each auction. Google wound it down and moved Search and Display campaigns onto Manual CPC, so campaigns still labeled eCPC in older exports no longer receive the adjustment. If a strategy document still references it, the current equivalent is Maximize Conversions with or without a target CPA, not a manual bid with a multiplier.

Full definition

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

Side by side.

The differences that actually change what happens in your account.

 Enhanced CPCManual Bidding
Status todayRetired for Search and Display; campaigns moved to manual bids.Supported everywhere manual bids are offered.
Bid entering the auctionYour number, scaled by Google.Your number, unchanged.
Conversion trackingRequired, or the multiplier did nothing.Optional.
Auction-time signalsConversion likelihood only.None.
Test legibilityMuddied, since the platform moved your number after you set it.Clean; only the number you edited changed.
Current equivalentMaximize Conversions, with or without a target CPA.Still itself.

What actually separates them.

01

Manual bidding gives clean cause and effect because your number is what enters the auction; eCPC broke that by scaling it invisibly.

02

eCPC could not price an auction from scratch, so it amplified rather than corrected any error in your manual bids.

03

With eCPC retired on Search and Display, there is no supported halfway setting between manual bids and full automated bidding.

04

eCPC without working conversion tracking behaved as plain manual bidding, which means some accounts never got the feature they thought they were running.

05

Manual bidding remains useful for thin volume and diagnostics; the thing that disappeared was the option to keep it while borrowing conversion intelligence.

Which one should you use?

Use Enhanced CPC when

  • Interpreting historical results from campaigns that ran eCPC.
  • Auditing strategy documents that still recommend it.
  • Reconciling third-party reporting that carries the old label on migrated campaigns.
  • There is no live decision here; the setting is not selectable.

Use Manual Bidding when

  • Volume too thin for an automated strategy to learn a pattern from.
  • Conversion tracking broken or mid-migration, so no model should be trained yet.
  • A test that needs one variable held still to be readable.
  • Very small budgets where a single mispriced auction is a large share of the day.

Common questions.

Did my bids change when eCPC was wound down?

Your stored bids did not change, but what entered the auction did. Under eCPC the platform scaled your number by predicted conversion likelihood; afterward it sends exactly the number you set. Campaigns that relied on upward adjustment on high intent auctions typically lost some of those auctions without any edit being made.

Should I raise manual bids to compensate for losing eCPC?

A flat raise recreates the average effect while losing the selectivity that made eCPC useful, since it lifts bids on weak auctions too. If the intent was auction-time conversion weighting, the supported route is Maximize Conversions. Raising manual bids is a stopgap for accounts that genuinely cannot support automated bidding yet.

Is manual bidding cheaper than automated bidding?

It is more predictable, which is not the same thing. Manual bids hold spend flat and make reporting legible, but they cannot react within an auction, so cheap high intent inventory goes to bidders who can. The realistic framing is that manual bidding is slower to react, and that lag has a cost that grows with account size.

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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