Is automated bidding better than manual bidding?

It depends on data volume. Automated bidding generally performs better once an account has enough conversion history for the algorithm to learn from, usually at least 30 conversions per month.

Should a brand new campaign use automated bidding?

Many advertisers start with manual or a simpler automated strategy like Maximize Clicks, then move to conversion-based automated bidding once enough data accumulates.

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Google Ads

Automated bidding vs manual bidding in Google Ads

Automation works best with enough data to learn from. Here's when manual control still beats letting the algorithm decide.

In short

Automated, conversion-based bidding generally outperforms manual bidding once an account has enough conversion volume, typically 30 or more per month, for the algorithm to find real patterns. Below that threshold, automation is often guessing with insufficient data, and manual control or simpler automated strategies tend to perform more predictably.

Why automation needs data to work

Automated bidding strategies like Target CPA or Target ROAS work by finding patterns across many past conversions, what time of day converted best, which devices, which audiences, which search terms. With too few conversions, there simply isn't enough signal for the algorithm to distinguish real patterns from random noise, and bids can swing unpredictably as a result.

Manual control still has a place

New campaigns, accounts with very tight geographic or niche targeting, and situations that need precise control over exactly which keywords get how much budget still benefit from manual or semi-manual approaches. Once enough conversion history builds up, transitioning to automated bidding usually becomes the better long-term choice, but forcing it too early can waste the exact learning period a new campaign needs.

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