Google Ads scripts - what they are and which ones are worth using

Scripts are worth knowing about because they solve specific problems that the Google Ads interface cannot solve natively. Budget management across multiple campaigns, broken URL monitoring, performance anomaly alerts, automated bid adjustments based on external data - these are tasks that would take significant manual time or that simply cannot be done through the standard interface. Scripts automate them reliably.

The scripts most accounts should be running

Broken destination URL checker is the most universally valuable script. It crawls all the destination URLs in your account and flags any that return error codes. A campaign sending paid traffic to a 404 page is invisible in normal reporting until someone manually checks - the campaign reports clicks and costs but the conversion rate collapses. Running this script weekly catches broken landing pages before they waste significant budget.

Budget pacing alerts notify you when campaigns are significantly over or underpacing against their monthly budget targets. If a campaign has spent 80 percent of its monthly budget by day 15, you want to know before it runs out halfway through the month. If a campaign is significantly underspending, you want to know so you can investigate why.

Performance anomaly detection compares recent performance against a historical baseline and sends an alert when metrics deviate significantly - a CPA that doubles overnight, a CTR that drops in half, a conversion rate that collapses. These anomalies have causes and catching them early limits the cost of whatever is causing the problem.

Where to find pre-written scripts

Google publishes a solutions gallery of pre-written scripts at ads.google.com/home/tools/scripts. Mike Rhodes at AgencySavvy and Frederick Vallaeys at Optmyzr have published extensive libraries of well-maintained scripts. Most of these require minimal configuration - entering your email for alerts, setting your budget parameters, defining your anomaly thresholds - rather than writing JavaScript from scratch.

The limits of scripts

Scripts run on a schedule - hourly, daily, or weekly. They are not real-time and they are not a substitute for campaign strategy. They are efficiency tools for monitoring and automating specific tasks that would otherwise require manual time. Use them for the tasks they do well and do not expect them to replace strategic judgment.