{"id":1584,"date":"2026-02-24T21:30:00","date_gmt":"2026-02-24T20:30:00","guid":{"rendered":"https:\/\/nilsrooijmans.com\/daily\/?p=1584"},"modified":"2026-03-27T10:24:20","modified_gmt":"2026-03-27T09:24:20","slug":"when-your-client-lets-an-llm-run-google-ads","status":"publish","type":"post","link":"https:\/\/nilsrooijmans.com\/daily\/when-your-client-lets-an-llm-run-google-ads","title":{"rendered":"When your client lets an LLM run Google Ads"},"content":{"rendered":"\n

Last week, one of my clients decided to be \u201csmart.\u201d<\/p>\n\n\n\n

He connected a large language model to the Google Ads API. Gave it access. Started asking performance questions.<\/p>\n\n\n\n

At first? Interesting insights. Some solid pattern spotting.<\/p>\n\n\n\n

Then\u2026 chaos.<\/p>\n\n\n\n

Without him realizing it, the LLM didn\u2019t just\u00a0analyze<\/em>. It “optimized.”<\/strong><\/p>\n\n\n\n

Yes. It AI-magically made changes inside the account. Bidding targets adjusted. Broad match keywords added… Stuff no human approved.<\/p>\n\n\n\n

And the reasoning behind it? Simply dead wrong!<\/p>\n\n\n\n

Luckily, my\u00a0Change History Alert script\u00a0<\/a>fired.<\/p>\n\n\n\n

The next day, I got an email in my inbox:<\/p>\n\n\n\n

\n

\u201cUnrecognized user made changes in account X.\u201d<\/em><\/p>\n<\/blockquote>\n\n\n\n

That \u201cuser\u201d? The LLM, on behalf of my client.<\/p>\n\n\n\n

I reverted the nonsense in minutes before the crazy changes could do harm.<\/p>\n\n\n\n

Here’s the thing:<\/strong> AI is a brilliant intern. It is NOT a senior media buyer. Just like an LLM (sometimes) hallucinates explanations, it can hallucinate optimizations too. You have to monitor its work like you monitor your interns.<\/strong><\/p>\n\n\n\n

And here\u2019s the actionable takeaway: install my change history alert script that flags ANY edits from outside your approved user list.<\/strong><\/p>\n\n\n\n

Even if it\u2019s \u201cjust\u201d an API integrated LLM.<\/p>\n\n\n\n

Go ahead, install it. It only takes 5 minutes.<\/p>\n\n\n\n

Your future self will thank you.<\/p>\n\n\n\n

LINK:\u00a0https:\/\/nilsrooijmans.com\/google-ads-script-change-history-alerts\/<\/a><\/p>\n\n\n\n

Happy scripting!<\/p>\n\n\n\n

– Nils<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Last week, one of my clients decided to be \u201csmart.\u201d He connected a large language model to the Google Ads API. Gave it access. Started asking performance questions. At first? Interesting insights. Some solid pattern spotting. Then\u2026 chaos. Without him realizing it, the LLM didn\u2019t just\u00a0analyze. It “optimized.” Yes. It AI-magically made changes inside the … Continue reading “When your client lets an LLM run Google Ads”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1584","post","type-post","status-publish","format-standard","hentry","category-google-ads"],"yoast_head":"\nWhen your client lets an LLM run Google Ads - Nils Rooijmans<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nilsrooijmans.com\/daily\/when-your-client-lets-an-llm-run-google-ads\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"When your client lets an LLM run Google Ads - Nils Rooijmans\" \/>\n<meta property=\"og:description\" content=\"Last week, one of my clients decided to be \u201csmart.\u201d He connected a large language model to the Google Ads API. 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