Google Ads scripting guides

How the scripting environment actually behaves: what GAQL returns, what Performance Max hides, where the execution limits bite, and how to automate an account without breaking it. Written from live accounts, not from the documentation index.

• Google Ads Scripts: What They Do Well, and Where They Stop

  A Google Ads script is scheduled JavaScript with read and write access to an account. Scripts are strong at reporting, monitoring and bulk hygiene, and weak at anything real-time, anything competing with Smart Bidding,…

  5 min read

• How to Add and Schedule a Google Ads Script

  Scripts are added under Tools, Bulk actions, Scripts. Paste the code, authorise it with an account that has edit access, run a preview and read the log, then set the schedule separately in the…

  3 min read

• Google Ads Script Limits That Change How You Build

  Advertiser account scripts are cancelled at 30 minutes, manager scripts at 60 when using executeInParallel with a callback. Iterators return at most 50,000 results, withIds accepts 10,000, logs truncate at 100 KB, and reports…

  3 min read

• GAQL in Google Ads Scripts: The Rules That Actually Bite

  GAQL queries one resource at a time with no joins, returns money in micros, needs an explicit date range for metrics, and omits rows with no activity rather than returning zeroes. AdsApp.search() runs it…

  3 min read

• AdsApp.search vs report vs Selectors: Which to Use

  Selectors are the only layer that can write to an account but cover limited campaign types and cap at 50,000 results. AdsApp.search() is the default read layer: GAQL, all channel types, no entity limits.…

  2 min read

• Google Ads Scripts and Performance Max: What Works

  AdsApp.campaigns() returns Search and Display only, so it silently omits Performance Max. Use AdsApp.performanceMaxCampaigns() to retrieve, pause and adjust budgets, or GAQL FROM campaign to cover every channel type in one read. Scripts cannot…

  2 min read

• N-Gram Analysis for Google Ads Search Terms

  N-gram analysis splits every search term into one and two word sequences and sums cost against the sequences instead of the terms. It turns a long tail of individually small rows into a short…

  3 min read

• Negative Keyword Conflicts: Finding Keywords Blocked by Your Own Lists

  A negative keyword that overlaps an active keyword blocks it entirely, with no warning in the interface. Conflicts usually come from shared lists applied account-wide, and a check has to read ad group, campaign…

  3 min read

• Automating the Google Ads Search Term Review

  Automate retrieval and aggregation of the search term report, not the decision. Scripts should pull the data, compute n-grams and flag terms above a cost threshold, while adding negatives stays a human step because…

  2 min read

• Budget Pacing in Google Ads Scripts

  Pace spend against the month, not the daily budget, because Google is allowed to overspend on any single day. Read through GAQL rather than AdsApp.campaigns() so Performance Max is included, and alert on band…

  3 min read

• Anomaly Detection in Google Ads: Choosing the Baseline

  Compare each day against the same weekday over the previous four weeks, not against the day before. Combine a percentage threshold with an absolute floor, and skip entities too new to have a baseline…

  3 min read

• Error Handling Patterns for Google Ads Scripts

  Ship a dry-run flag on anything that writes, wrap each loop iteration so one bad entity cannot stop the run, treat an unexpectedly empty result set as a failure rather than a clean run,…

  3 min read

• A Safety Checklist for Google Ads Scripts That Write

  Before a writing script goes live: define what it must never do, run it dry for a week on schedule, cap entities changed and change size per run, honour an exclusion label, and confirm…

  3 min read

• Manager Account Scripts and executeInParallel

  Manager scripts iterate accounts sequentially or run executeInParallel across up to 50 accounts, with a 60 minute ceiling when a callback is specified. The parallel function is isolated, returns a string capped at 10…

  3 min read

• Google Ads Scripts vs the Google Ads API: When to Move

  Move from scripts to the Google Ads API when you cross two of three thresholds: needing to run more often than hourly, needing to join Google Ads data with data held elsewhere, or outgrowing…

  3 min read

Every guide links to the script that implements it. All of them are free and read-only.