Google Ads Scripts: A Beginner's Guide for 2026

Google Ads scripts are one of the most powerful — and underused — tools in a PPC manager's toolkit. They let you automate tasks, generate reports, and make changes across your accounts using JavaScript code that runs directly inside Google Ads.

What Are Google Ads Scripts?

At their core, Google Ads scripts are small JavaScript programs that interact with the Google Ads API. They run inside Google's servers on a schedule you define — hourly, daily, or on demand.

Think of them as macros for Google Ads. Instead of manually checking search terms, adjusting bids, or pausing keywords every day, you write a script once and it does the work for you.

What Can Scripts Do?

Almost anything you can do in the Google Ads UI, you can automate with a script:

• Bid management — Adjust bids based on performance thresholds, time of day, or weather data
• Negative keywords — Automatically add negative keywords from search term reports
• Placement exclusions — Clean up Display and Performance Max placements that waste budget
• Reporting — Generate custom reports in Google Sheets with exactly the metrics you need
• Alerts — Get notified when spend spikes, conversions drop, or ads get disapproved
• Budget management — Pace budgets throughout the month or reallocate based on performance

How Do Scripts Work?

Every Google Ads script has a main() function — this is the entry point that Google calls when the script runs. Inside, you use Google's built-in classes to interact with your account:

function main() {
  // Get all keywords with more than 100 clicks and zero conversions
  var keywords = AdsApp.keywords()
    .withCondition("Clicks > 100")
    .withCondition("Conversions = 0")
    .forDateRange("LAST_30_DAYS")
    .get();

  while (keywords.hasNext()) {
    var keyword = keywords.next();
    keyword.pause();
    Logger.log("Paused: " + keyword.getText());
  }
}

This simple script finds keywords that spent money but never converted and pauses them automatically.

Single Account vs. MCC Scripts

Single account scripts run inside one Google Ads account and can only access that account's data. They are simpler to write and debug.

MCC (Manager) scripts run at the manager account level and can iterate across all child accounts. They are essential for agencies managing many clients, but the code is more complex because you need to handle account selection.

Limitations to Know

• 30-minute execution limit — Scripts that take longer are terminated. For large accounts, you may need to batch your work.
• No external libraries — You cannot import npm packages. You get Google's built-in classes and vanilla JavaScript.
• Limited scheduling — The finest granularity is hourly. For near-real-time automation, you need external solutions.
• No version control — Google does not track script changes. If you overwrite a working script with a broken one, the old version is gone.

Getting Started

The fastest way to start is with a pre-built script from a trusted source. The chiliad marketplace has free automation scripts you can install with one click — no coding required.

If you want to write your own, start with Google's official documentation and experiment in a test account first.

And if you manage multiple accounts, consider a script management platform like chiliad to keep everything organized, versioned, and monitored.