Google Ads Performance Planner: Forecast Before You Spend

2. What Is the Google Ads Performance Planner?

Quick Answer: Performance Planner is a free tool in the Google Ads Tools menu that builds forecasts for your live campaigns. You set a date range and a key metric, then move the spend slider and watch projected clicks, conversions and cost per acquisition move with it.

The forecasts are not guesses pulled from a category average. Google says the tool simulates relevant ad auctions from the last 7 to 10 days, factoring in seasonality, competitor activity and landing page, then refreshes daily. Per Google’s Performance Planner documentation, four jobs sit inside the tool.

• Access forecasts. See projected monthly and quarterly performance for campaigns you already run, at your current spend.
• Explore outcomes. Change the budget, the target CPA or the target ROAS, and watch the projection redraw before anything goes live.
• Understand seasonal opportunity. Find the months where the same ringgit buys more, which matters enormously in a market with two major festive peaks.
• Manage budgets across campaigns. The tool proposes how to split a fixed total between campaigns for the best combined return — including proposing zero for campaigns it thinks you should pause.

That last point catches people out. A recommendation of no budget is not a bug; it is the planner saying those campaigns are dragging the average down. Forecasting is a habit, not a one-off exercise. It belongs in the same rhythm as the checks we describe in campaign management week by week.

3. How Close Do Its Forecasts Actually Land?

Quick Answer: Accuracy depends entirely on campaign type. Across ZenWeb’s Malaysian accounts, brand search forecasts landed within a few per cent of actual conversions, while Demand Gen forecasts overshot by roughly a third. The more automated the campaign, the wider the gap.

The pattern below is consistent enough to plan around. Stable, tightly-themed search campaigns forecast well because the auction they sit in barely moves. Campaigns where Google reallocates inventory in real time do not, because the thing being forecast keeps changing shape — the same reason Dynamic Search Ads behave differently month to month.

Notice that the cost column barely moves while the conversion column swings wildly. Google spends what you told it to spend; what that money buys is the uncertain part. Ad quality shifts the outcome too, so a forecast built on weak creative is optimistic by construction. See our notes on responsive search ads that convert and on how Ad Rank decides who wins the auction.

4. Which of Your Campaigns Can Even Be Forecast?

Quick Answer: A campaign needs recent spend, at least three clicks, ten impressions, one conversion and a bid strategy untouched for ten days. Campaigns inside an experiment are excluded. Small Malaysian accounts often fail on the conversion and bid-strategy rules without realising it.

Google publishes the thresholds openly. For search, standard Shopping and Performance Max campaigns, the eligibility requirements are spend above zero in the last 17 days, at least 3 clicks and 10 impressions, and at least 1 conversion or conversion value. The bid strategy must also have been left alone for 10 days. Demand Gen campaigns have their own set, including at least 14 impressions in the past 7 days.

Those numbers look trivially low. In practice they are not, because the failure is rarely volume. It is fiddling. An account where someone switches bidding every week never clears the ten-day rule.

Two of the top three are self-inflicted and fixable in a week. Fix conversion tracking first, then leave the bidding alone long enough for the account to become forecastable. A bid list built around keyword research that actually sells gets you to the conversion threshold faster than widening match types does.

5. How to Build a Plan in Performance Planner

Quick Answer: Open Tools, choose Performance Planner, create a plan, set the date range, channel and key metric, optionally set a spend or CPA target, then pick the campaigns to include. The forecast page appears in seconds and nothing in your account changes.

How to create a plan in Google Ads Performance Planner

The sequence follows Google’s own setup instructions. Grouping the campaigns sensibly at step five matters more than anything else you do here.

1. Open Performance Planner. In Google Ads, go to the Tools menu, then Planning, then Performance Planner.
2. Create a new plan. Select the plus icon. You can also start from one of the suggested plans Google puts at the top of the page.
3. Set the date range, channel and key metric. Pick the metric your business actually reports on — conversions or conversion value, rarely clicks.
4. Add a target, if you have one. Enter a spend figure or a cost per acquisition and the planner will move budget around to try to hit it.
5. Select the campaigns. Choose campaigns driving the same goal. The tool works by shifting budget between them, so mixing unrelated objectives produces a meaningless plan.
6. Create and read the forecast. The draft plan page opens. Drag the spend and watch the curve. Nothing goes live unless you choose to apply it.

One habit worth building: run the plan against the campaigns that target buyers rather than browsers separately from your awareness campaigns. Averaged together, the good numbers hide the bad ones.

6. Where Extra Ringgit Stop Working

Quick Answer: The forecast curve bends. Early budget increases buy conversions cheaply because you are still missing impressions you should have won. Past a point, every extra thousand ringgit buys fewer conversions at a worse cost, because the remaining auctions are ones you were right to lose.

This bend is the single most useful thing on the screen, and the part most people scroll past. The modelled example below shows a typical Malaysian services account.

Between RM 8,000 and RM 12,000 the cost per acquisition passes RM 100. Whether that is worth paying is a margin question, not a marketing one, and only you can answer it. What the curve does tell you is that beyond the bend, a cheaper route to more customers is usually fixing the landing page rather than raising the bid. That is the case for conversion rate optimisation work in one sentence. If these numbers look far off your own, our guide to how much SMEs should spend each month gives the wider benchmarks.

7. What the Planner Cannot See

Quick Answer: The tool forecasts auction outcomes, not business outcomes. It cannot see your close rate, your margins, whether your sales team can handle more enquiries, or a competitor about to double their budget next Tuesday.

It also lost coverage this year. Effective 9 March 2026, Performance Planner no longer supports plans for Display or Video campaigns, or any plan using impression share as the key metric. If your planning leaned on those, rebuild it around conversions. Impression-share goals now get tracked outside the planner, as covered in our piece on search impression share as a growth metric.

• It assumes your last 7–10 days repeat. A landing page outage, a stock shortage or one aggressive new competitor during that window skews everything downstream.
• It does not know your capacity. A forecast of 122 enquiries is worthless if your team can only follow up 60 of them properly.
• It counts conversions, not customers. Unless closed sales are fed back into the account, the planner optimises toward form fills.
• It cannot price your competitor’s next move. Simulations reflect the auction as it was, not as it will be after a rival doubles their bid.

A forecast is a model of the auction. Your P&L is a model of the business. Nobody at Google is joining those two things up for you.

8. Planning Around the Malaysian Calendar

Quick Answer: Malaysian demand is not flat. Consumer categories spike around Chinese New Year and Hari Raya, then again in the November and December sales window. Professional services run almost the opposite shape, going quiet during the long festive breaks.

Performance Planner adjusts for seasonality automatically, but it plans forward from recent data — so a quarterly plan built in a quiet month will understate a peak that is six weeks away. Build the plan, then sanity-check it against the shape below.

The uncomfortable row is the third one. In the two windows where consumer demand peaks, clicks also cost the most — so a flat monthly budget quietly buys you less exactly when you need more. If your results always sag at the same time of year, our guide to the Google Ads seasonal slump covers the fix.

9. Where Performance Planner Goes Wrong

Quick Answer: Most bad plans come from bad inputs, not a bad tool. Mixed campaign objectives in one plan, a conversion action nobody trusts, and applying the whole recommendation in a single move are the three mistakes we see most often.

Four patterns account for nearly every forecast that embarrasses somebody later.

• Everything goes in one plan. Brand, non-brand and Performance Max together produce an average that describes no campaign you actually run. Split them.
• The conversion action is not the one that matters. If a newsletter signup and a quote request both count as one conversion, the plan is optimising toward the cheaper of the two.
• The whole increase gets applied at once. Jumping from RM 5,000 to RM 18,000 overnight resets the learning the forecast was built on. Step up in stages instead, as we set out in when to scale up your Google Ads budget.
• Match types get widened at the same time. Changing budget and match strategy together makes the result unreadable — you learn nothing about either. Our comparison of broad match versus exact match explains what each change actually does.

There is also a quieter failure: building a plan, admiring it, and never comparing it against what happened. A forecast you never mark against reality teaches you nothing about how much to trust the next one.

10. How to Judge an Agency That Forecasts

Quick Answer: Ask how last quarter’s forecast compared to what actually happened. A team that forecasts routinely will know the gap and explain it. A team that only forecasts to win pitches will not have checked.

Any agency can screenshot a rising curve and call it a projection. Five questions separate a planning habit from a sales prop.

1. What was the variance on your last forecast? A real answer names a percentage and a reason. Silence here is the answer.
2. Which conversion action does the plan optimise toward? If it is an all-conversions total mixing enquiries with newsletter signups, the forecast is soft.
3. Where does the curve flatten for my account? Anyone who has opened your plan knows this number.
4. What happens if I only fund half of this? The answer should be a smaller plan, not a warning that the strategy collapses.
5. How often is the plan rebuilt? Quarterly at minimum, and before every seasonal peak.

Scope changes the answers too. A solo freelancer and a full team run this differently, as our comparison of an SEM consultant versus an SEM agency unpacks, alongside what sits inside an SEM specialist’s scope of work. Still building a shortlist? The criteria in our guide to choosing a paid search agency apply directly. ZenWeb builds a forecast before recommending any budget change; the full scope sits on our Google Ads services page.

11. Conclusion

Quick Answer: The Google Ads Performance Planner turns a budget guess into a testable estimate. It is free, it takes five minutes, and it will not change your account. The discipline is in reading the curve honestly and checking the forecast against what really happened.

Start small. Build one plan for your best-performing search campaigns, find where the curve bends, and write that number down. Next quarter, compare it against what the account actually delivered. Two cycles of that and you will know exactly how much to trust the forecast — which is worth more than any single projection the tool will ever draw for you.

12. Frequently Asked Questions

1. Is Performance Planner free to use?

Yes. It is built into every Google Ads account under the Tools menu and costs nothing to open or run. You only spend money if you choose to apply a plan’s recommendations to your live campaigns, and that is a separate, deliberate action.

2. Will creating a plan change my campaigns?

No. Google is explicit that plans are forecasts only — nothing takes effect in your account unless you apply the changes yourself. You can build, edit and delete as many plans as you like without touching what is currently running.

3. Why can’t I see some of my campaigns in the planner?

They have failed an eligibility check. The usual causes are a bid strategy changed in the last ten days, no recorded conversions, no spend in the last 17 days, or the campaign sitting inside an experiment. Fix the underlying issue and the campaign becomes forecastable within a couple of weeks.

4. How accurate are the forecasts in practice?

Accuracy tracks how automated the campaign is. Stable search campaigns forecast well; Performance Max and Demand Gen forecasts tend to run optimistic on conversions. Google measures accuracy by comparing plans against eventual performance and uses that to fine-tune the model, but you should still keep your own record of forecast versus actual.

5. Can I still plan Display and Video campaigns?

Not since 9 March 2026. Performance Planner dropped support for Display and Video campaigns, along with any plan using impression share, top impression share or absolute top impression share as its key metric. Search, Shopping, App, Demand Gen, Local and Performance Max campaigns are still supported.