Will a Company Tell You When Its Rules Change?

In November 2025, a Google Ads feature for new Demand Gen campaigns could stay active "for up to three weeks", according to PPC News Feed. Today, Google's own help page says "up to 60 days". Between those two sentences, there is no dated announcement, and the page has no changelog. There is just a page that now says something different.

Most of us carry a quiet assumption about rules like this: if something important changes, the company will tell us. This story suggests a less comfortable view. Often, the page is the announcement.

What changed on the Google Ads help page?

The window for a Demand Gen cost adjustment grew from three weeks to up to 60 days, and the feature now covers a second bidding strategy. The adjustment is a beta that can lower what Google charges for a Demand Gen campaign in its learning phase, and it does not apply to every campaign.

Three weeks is 21 days, so the new ceiling is nearly three times as long. That is a big shift for anyone who reads cost reports, and it lived in one clause on one help page.

Didn't Google announce it?

Not in any dated way that the people covering it could find. Relevant Audience, in an article dated October 26, reported that the page is undated, has no changelog, and that Google has published no dated announcement about the change. When we read the page the same day, the only date on it was the copyright line in the footer.

So how did anyone notice? People read the page. ContentGrip traced the 60 day figure to Google's documentation and to reporting from October 16. The Adriaan Dekker site credited PPC News Feed and Hana Kobzová when it covered the change on October 25, and Relevant Audience wrote that PPC News Feed reported the new wording that same day. In other words, the change surfaced through trade coverage, not through a dated notice from Google.

Isn't a changelog enough to keep up?

Only for the pages that have one. Google itself shows the split. Its Search documentation keeps a dated list of updates: on October 23 it clarified when to use hyphens or underscores in URLs, on October 21 it updated a page on controlling what you share with Search, and on October 16 it refreshed an Indexing API quota page.

The Ads help page above has nothing like that. Same company, two very different habits. A changelog is a record of what someone decided to log, which is useful, but it is not a record of everything that changed.

Why does one sentence on a help page matter so much?

Because people plan budgets and reports around it. The help page says there are "no separate line items, credits, or notifications for these adjustments" and that they can take up to 5 days to show up in cost reporting. The only trace is in the final cost.

That changes how careful advertisers read their numbers. Relevant Audience advised treating Target CPA and Target ROAS cost figures as provisional for about 60 days plus 5 days of reporting lag. It also suggested pulling date ranges again before closing a month, and not budgeting around getting the adjustment at all.

There is more the page leaves open. Relevant Audience noted it does not say when the wording changed, how large an adjustment might be, or whether there is any setting to opt in or out. ContentGrip reported that no minimum guaranteed adjustment is published. The page also says eligibility depends on factors like account age and authenticity, and that these factors may change. Those are exactly the kinds of lines that can be edited again.

Which pages deserve this kind of attention?

Any page where a sentence or a number sets a rule you act on. That reaches well beyond ad platforms.

• Help and documentation pages.They often describe limits, timings, and eligibility, and many carry no visible date.
• Policy and terms pages.A single new clause can change what you agreed to.
• Plan and pricing details.Limits and inclusions can move separately from the headline price.
• Page titles.In this case the title quietly dropped "YouTube", a possible clue that the feature had widened.

Watch the specific part, not the whole page. Help pages get new navigation, banners, and wording polish all the time. What you care about is the sentence with the number in it.

So what should you do differently?

Treat the page as the source of truth and keep an eye on it, instead of waiting to be told. Write down the rules you depend on, where each one lives, and what it says today. Then check those exact lines on a schedule.

Alertbase is one way to do that. You can watch a single element or section of a public page and describe what matters in plain language, such as "Tell me when the duration of this adjustment changes." Each alert can include a short summary of what changed, before and after screenshots when available, and a change history for that page. Checks run on a schedule, so no tool sees every edit the instant it happens, but you stop relying on someone else to notice.