Study first
Review the ideas behind the questions
Check the reason for a Google Ads bidding change before you touch the account. Focus on whether the issue is bad conversion data, a short expected rate change, a shared budget structure, or an incomplete performance window.
Separate bad data from normal learning
Smart Bidding uses conversion and conversion value data. A tracking incident needs a different response from normal auction movement or a new bid-strategy change.
- Google Ads data exclusions are for reducing the impact of conversion tracking issues on Smart Bidding.
- A data exclusion should cover clicks that could have had bad conversions attributed to them.
- Data exclusions change Smart Bidding inputs, but excluded conversions can still appear in reports.
In Practice
Use the incident window, not the report symptom
If a tag was broken for three days and leads convert five days after the click, the exclusion should look back far enough to cover the affected clicks.
Do not clean reports by removing the exclusion
Backfilling may be a reporting step later, but removing a live data exclusion after it is applied can create more bidding trouble.
Common mistakes
Treating a Google Ads data exclusion as a way to hide bad conversion numbers from reports.
Use it only to protect Smart Bidding from bad conversion data; the conversions can still appear in reporting.
Q&A
What problem should a Google Ads data exclusion solve?
It should reduce the Smart Bidding impact of incorrect conversion or conversion value data.
Should the excluded range follow click dates or conversion dates?
Use the click dates that could have bad conversions attributed to them, including the normal conversion delay.
Use planned adjustments only for real short spikes
A sale or short promotion can temporarily change conversion rates. Google Ads seasonality adjustments are built for that kind of planned change, not for every weekly fluctuation.
- Seasonality adjustments inform Smart Bidding about expected conversion-rate changes from future events.
- Seasonality adjustments are meant for major conversion-rate changes, not normal seasonal events Smart Bidding already handles.
- Seasonality adjustments are ideal for short events of 1 to 7 days and may work less well beyond 14 days.
In Practice
Match the tool to the cause
A tracking outage points to a data exclusion; a planned two-day sale with a known conversion-rate change points to a seasonality adjustment.
Long promotions need another plan
If the promotion runs for a month, a seasonality adjustment is a weak fit; review targets, budget, and campaign plan instead.
Common mistakes
Adding a seasonality adjustment after a past tag outage because conversion counts dropped.
Use a data exclusion for bad conversion data; save seasonality adjustments for expected future conversion-rate changes.
Q&A
When is a Google Ads seasonality adjustment a strong fit?
It fits a short future event, such as a sale, when a major conversion-rate change is expected.
Read structure before moving targets
Portfolio bid strategies, shared budgets, and bid strategy reports can change how a single edit affects several campaigns.
- A Google Ads portfolio bid strategy can optimize bids across multiple campaigns and provides one place to change settings for campaigns using that strategy.
- Performance Max campaigns cannot use Google Ads portfolio bid strategies.
- Bid strategy reports show status, tailored metrics, conversion delay, top signals, and performance charts for Smart Bidding review.
In Practice
Shared budgets move with the portfolio
When a shared budget is tied to a portfolio bid strategy, adding or removing campaigns from that strategy can update which campaigns share the budget.
Reports need complete enough data
Recent performance can look weak if conversions have not fully arrived, so conversion delay belongs in the review before changing targets.
Common mistakes
Changing a target CPA on one campaign without checking whether it uses a portfolio strategy.
Check the bid strategy structure first because portfolio settings can apply to every campaign using that strategy.
Q&A
What should be checked before editing a target on one Google Ads campaign?
Check whether the campaign is using a portfolio bid strategy, because the setting may affect other campaigns in that strategy.
Where should an advanced reviewer check Smart Bidding status and conversion delay?
Use the Google Ads bid strategy report for the relevant campaign or portfolio strategy.