What Google Ads Scripts Can Do for You
Google Ads Scripts are JavaScript-based programs that run directly within your Google Ads account. They can read account data, make changes, send emails, access spreadsheets, and run on automated schedules — all without external software or third-party tools.
For account managers handling multiple clients or large campaigns, scripts save 5-15 hours per week of manual work. They also catch issues faster than human monitoring — a script checking every hour will spot a broken landing page or budget spike within 60 minutes, versus the days a manual review might take.
Script 1: Budget Pacing and Overspend Alerts
One of the most common issues I see is campaigns overspending their monthly budget. Google's daily budget system allows overspend of up to 2x the daily budget on any given day, and while it should balance out monthly, it does not always work perfectly.
This script monitors daily spend against your monthly budget target and sends an email alert when spending is on pace to exceed the plan by more than 10%.
Key functionality:
- Calculates projected monthly spend based on current daily run rate
- Compares against your target monthly budget
- Sends an email alert when projected spend exceeds 110% of target
- Optionally pauses campaigns automatically when a hard spend ceiling is reached
Schedule this script to run every 4 hours. It catches overspend issues the same day they start, rather than discovering them at month-end in your invoice.
Script 2: Broken Landing Page Detection
A landing page that returns a 404 error or times out is the most expensive kind of Google Ads waste — you are paying for every click that lands on a broken page, and getting zero leads in return. This happens more often than you might think: website updates, CMS changes, URL restructuring, and expired SSL certificates all cause landing page failures.
This script checks every active ad's final URL and returns a report of any URLs that do not return a 200 status code. It also checks for redirect chains, which slow page load and hurt Quality Score.
Key functionality:
- Fetches the HTTP status code for every active final URL
- Flags 404 errors, 500 errors, redirect chains, and SSL errors
- Sends an immediate email alert with the affected ads and URLs
- Can be configured to pause affected ads automatically until the issue is resolved
Schedule this script to run daily. A broken landing page caught within 24 hours costs a fraction of one that runs for a week before anyone notices.
Script 3: Quality Score Tracker
Quality Score changes impact your CPC and ad position, but Google Ads does not provide historical Quality Score data in the interface. This script captures daily snapshots of Quality Score for every keyword and writes them to a Google Spreadsheet, giving you a complete history of Quality Score trends.
Key functionality:
- Records keyword-level Quality Score, expected CTR, ad relevance, and landing page experience ratings daily
- Writes data to a Google Sheets spreadsheet for easy analysis and charting
- Highlights keywords where Quality Score has dropped by 2 or more points in the last 30 days
- Creates a weekly summary email with overall Quality Score trends
This data is invaluable for diagnosing performance changes. When your CPC suddenly increases by 25%, the Quality Score tracker tells you whether it is a Quality Score issue or a competition issue.
Script 4: Search Terms Negative Keyword Miner
Reviewing search terms manually is important but time-consuming. This script automates the initial screening by flagging search terms that meet specific criteria for potential negative keyword addition.
Key functionality:
- Identifies search terms with more than a set number of clicks (e.g., 5) and zero conversions
- Flags search terms containing common non-commercial modifiers (DIY, how to, jobs, salary, free)
- Calculates the cost of irrelevant search terms over the review period
- Generates a Google Sheets report with recommended negative keywords
The script does not add negatives automatically — that still requires human judgment. But it reduces a 45-minute manual review to a 10-minute approval process. Schedule it weekly.
Script 5: Bid Adjustment by Weather
For businesses where demand correlates with weather conditions — HVAC, roofing, exterior cleaning, landscaping — weather-based bid adjustments can significantly improve campaign efficiency.
This script connects to a weather API and adjusts bids based on current conditions in your target locations:
- HVAC company: increase bids by 30% when temperature exceeds 95 degrees or drops below 32 degrees
- Roofing company: increase bids by 25% in the days following storms
- Exterior cleaning: increase bids during dry spells, decrease during rainy periods
- Snow removal: activate campaigns when snowfall is forecasted
Weather-based bidding gives you a timing advantage over competitors who run the same bids regardless of conditions. When it is 103 degrees and someone searches for "AC repair near me," that lead is worth more than the same search on a 72-degree day.
Script 6: Automated Performance Reports
This script generates and emails a formatted performance report on a weekly or monthly schedule. It pulls key metrics (spend, conversions, CPA, CTR, impression share) and presents them in a clean, readable format.
Customize the report to include:
- Campaign-level performance summary
- Week-over-week or month-over-month comparisons
- Top and bottom performing keywords
- Budget pacing against monthly targets
- Anomaly alerts (any metric that changed by more than 20% from the prior period)
Schedule weekly reports for Monday mornings so you start each week with a clear picture of account performance.
Getting Started with Scripts
To access Google Ads Scripts, navigate to Tools and Settings, then Bulk Actions, then Scripts. You will see a code editor where you can paste and edit scripts.
Steps for implementation:
- Start with one script. The budget alert script is the safest starting point because it only reads data and sends emails — it does not make changes to your account.
- Test in preview mode. Every script has a "Preview" button that runs the script without executing any changes. Use this to verify the script works correctly before setting it live.
- Set appropriate schedules. Budget and landing page scripts should run daily or more frequently. Quality Score tracking runs daily. Search terms mining runs weekly.
- Monitor script execution. Check the Scripts dashboard periodically for execution errors. Scripts can fail silently if your account structure changes or Google updates their API.
When Scripts Are Not Enough
Scripts are powerful but have limitations. They cannot access data across MCC accounts (without additional setup), they have execution time limits (30 minutes), and they require basic JavaScript knowledge to customize. For accounts spending over $50,000 per month or managing more than 10 accounts, dedicated PPC automation platforms like Optmyzr, Adalysis, or custom-built solutions through the Google Ads API may be more appropriate.
For small to mid-size accounts, though, a handful of well-configured scripts provides 80% of the automation value at zero cost. Start with the budget alert and broken URL checker, and add more as you see the time savings compound.