Google Ads · Wasted budget

Which Google Ads campaigns are wasting budget?

The Google Ads campaigns wasting budget are the ones spending with no recorded conversions, or below the ROAS or CPA you are aiming for, over a long enough window to judge. Adstudio lists them against your own target, then goes one level down to the ad groups, keywords and search terms where the money went, so you can cut the waste rather than the campaign.

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The numbers that matter

What to read first.

Cost with zero conversions: The clearest waste signal, once the window is long enough for the campaign's usual conversion lag.
Conversion value / cost: Compared with your own target ROAS, not with a fixed threshold.
Search lost IS (budget): A profitable campaign capped by budget is the place to move the money you cut.

The method

How to break it down.

01Pick the window: 30 days by default, longer for low-volume campaigns.
02List campaigns with spend and no conversions, and campaigns below your ROAS or CPA target.
03Check the campaign's objective first: an awareness or video campaign is not judged on conversions.
04Go down to search terms, keywords or asset groups to find the part of the campaign that wastes spend.

How Adstudio answers it

In the app, or from the AI you already use.

In the Adstudio assistant

The assistant runs a waste analysis across the account and an audit of conversion setup and bidding, then shows the spend at stake per campaign. For Search it lists wasteful search terms and can add them as campaign negatives; pauses and budget moves are prepared too. Every change is validated by Google and applied only after you confirm.

From ChatGPT or Claude, over MCP

From ChatGPT or Claude, your AI can list campaigns and ad groups with get_entities and rank them by spend, conversions and conversion value with query_performance. It reads; changes stay in the Adstudio app.

list_accounts
query_performance
get_entities

Prompts

Copy one and ask.

“Which campaigns spent money without a conversion in the last 30 days?”
“Rank my campaigns by ROAS against a target of 3 and show the spend below target.”
“Which of my campaigns are limited by budget but profitable, so I can move money there?”

Limits

What Adstudio will not tell you.

Adstudio reports spend against your target; it does not decide on its own that a campaign should stop.
Performance Max asset-group assets are not returned over MCP; the in-app assistant reads asset groups and products.

FAQ

Questions people also ask.

Long enough for the campaign's usual time to convert. Adstudio defaults to 30 days and tells you when a campaign's volume is too low to judge in that window.

No. It prepares the change as a card. Nothing changes in Google Ads until you confirm it.

Creating an account costs nothing, but connecting an ad account needs a paid plan: Hobby at $19 a month, or Business at $39 per workspace a month. There is no trial, and the price does not depend on your ad spend.