Automated rules are for alerting, not for acting

Google Ads automated rules can change bids, budgets, and status on a schedule. In an account using smart bidding, most of that is a bad idea — you end up with two systems adjusting the same lever with different information.

Used for notification rather than action, the same feature is one of the most useful things in the interface.

Rules worth having as alerts

Campaign limited by budget for more than three consecutive days. The clearest possible signal that money is being left on the table, and it appears nowhere unless you look.

Conversions dropped to zero yesterday on a campaign that normally has some. The fastest available detection of broken conversion tracking, which otherwise takes weeks to notice.

Cost per acquisition above threshold for a rolling seven days. Not a single day, which is noise.

Disapproved ads or products, immediately. Disapprovals are silent and can remove a campaign's entire inventory.

Spend anomaly — daily cost more than 50% above the trailing average. Catches both runaway campaigns and the aftermath of a well-intentioned change.

Why alerting beats acting

An alert costs you an email and a decision. An automated action costs you a change you did not see, at a time you were not watching, based on a rule written for circumstances that have since changed.

The classic failure: a rule pausing keywords above a cost-per-acquisition threshold, firing during a week when conversion tracking was broken, pausing the account's best keywords for reasons that were entirely fictional.

The rules that are still worth acting automatically

Pausing ads with a fixed end date — promotional copy referencing an offer that expires.

Scheduling budget changes for known events, agreed in advance.

Both are cases where the correct action is known ahead of time and does not depend on performance data.

The thing an alert cannot do

Tell you why. An alert that cost per acquisition rose is the beginning of an investigation, not a conclusion, and the temptation to write a rule that responds automatically is exactly the temptation to skip the investigation.