Google Apps Script Not Working? Sheets Automation Fixed Today

An Apps Script that stopped working usually failed for a reason you can read in its execution log: an authorisation that needs re-granting, a trigger that was removed when the owner changed, a quota that was exceeded, a Drive or Sheets service error, or a sheet whose columns were moved. We find it on a short call and fix it the same business day, or rebuild the script in n8n if it has outgrown Apps Script.

By OpsThrive · Published 28 October 2026 · Prices and facts last reviewed 2 November 2026

What we check first

  1. The Apps Script execution log and the first failing line.
  2. Authorisation scopes and whether the script runs as the right Google account.
  3. Time-based and event triggers, which disappear when ownership or the account changes.
  4. Daily quotas for email, URL fetch and triggers.
  5. Changes to the sheet itself: renamed tabs, moved columns, new data types.

What you get

  • The script running again, with the cause written down.
  • Error handling and an email or Slack alert when it fails next time.
  • A recommendation on whether the job should move to n8n as it grows.

How it works

  1. Book the free 15-minute call or email us what is happening. You hear back the same business day.
  2. We diagnose on the call with screen share or read-only access, and you get a fixed quote the same day.
  3. You share access, we fix it, in your accounts and on your servers. You keep ownership of everything.
  4. You get a short written note of the cause, the change, and how to stop it recurring.

Related

Frequently asked questions

Can you fix a script someone else wrote?

Yes. Most of the scripts we fix were written by a former employee or a freelancer. We document what it does as part of the fix.

Should this be in n8n instead of Apps Script?

If the script talks to several external services, runs on a schedule across many sheets, or needs retries, n8n is usually easier to maintain. If it is a single sheet doing one job, Apps Script is fine. We will tell you which on the call.

What language is Google Apps Script?

JavaScript, run on Google's servers with built-in objects for Sheets, Gmail, Drive, Calendar and Docs. Anyone who knows JavaScript can read your script, which is why we can fix one written by someone else; the parts that break are usually quotas, triggers and authorisation rather than the language.