Why it happens
Broad match without Smart Bidding
Broad match without Smart Bidding
Broad match leans on conversion-based bidding to pick good searches. On manual CPC or Maximize clicks it buys whatever is loosely related.
Too little conversion data
Broad needs a steady flow of conversions to learn from. A campaign with a handful a month gives it nothing to learn on, so it spends on volume.
Broad and phrase versions competing in one ad group
When the same keyword runs at both match types, Google prefers the identical one, but broad still picks up everything the phrase version would never touch.
No negatives behind the broad keywords
Broad match needs a negative list from day one. Without it, jobs, free, DIY and competitor searches pile up in the search terms report.
How to fix it, step by step
Compare the two in the search terms report
Go to Campaigns, then Insights and reports, then Search terms. Add the Match type column and compare cost, conversions and CPA for broad versus phrase over 30 to 90 days.
Keep broad only where Smart Bidding runs
Broad belongs in campaigns on Maximize conversions, Target CPA or Target ROAS with at least a few dozen conversions a month. Elsewhere, move to phrase.
Add the phrase version, then pause the broad one
Google does not let you change a keyword's match type in place. Add the keyword again in quotes as phrase match, then pause the broad version so its history stays readable.
Add negatives for what broad dragged in
Turn the irrelevant broad search terms into negatives at campaign level before you test broad again.
Steps checked against Google Ads Help: About keyword matching options; Google Ads Help: About the search terms report; Google Ads Help: About broad match.
Sprites fixes this
Or let Sprites fix it
Sprites splits your search terms by match type, shows what broad is costing you, and moves the waste to phrase or exact.
What Sprites does
- Reads every search term that triggered your Search campaigns, with cost and conversions per term.
- Finds the zero-conversion spend across campaigns and keywords in one deduplicated total.
- Adds the phrase or exact version of a keyword, pauses the broad one and adds negatives for the junk terms.
- Shows each change on a card first. You approve every change before it goes live.
What it doesn't do
- It does not change a keyword's match type in place. Google does not allow that, so it adds the new version and pauses the old.
- Search terms come from Search campaigns. Performance Max terms are not part of this read.
Questions
Is phrase match better than broad match?
For most small and new accounts, yes. Phrase match keeps your ads near searches that mean what your keyword means. Broad match can win when Smart Bidding has enough conversions to steer it.
Does phrase match still include broad match modifier?
Yes. Google folded broad match modifier into phrase match in 2021, so phrase now covers what BMM used to, and word order can vary when the meaning holds.
Can I change a keyword from broad to phrase match?
Not in place. Add the keyword again in quotes as phrase match and pause the broad version. Pausing keeps its history in reports.
Why does Google keep recommending broad match?
Broad match gives Smart Bidding more searches to bid on. That helps when your conversion tracking is clean and your volume is high. It hurts when either is missing.
How long should I test broad match?
Give it at least two to four weeks and enough conversions for Smart Bidding to learn, then compare CPA and conversion volume against the phrase campaign.
Let Sprites fix it
Connect the account. Sprites finds the cause, stages the change and waits for your approval.