Insights · News

Google Ads Now Tells You to Spend More. In a New Market, Read It Carefully

By RKP Agency, Prague7 min read
The short version
  • New tool, one direction. On 24 September 2026 Google Ads added two budget modes to its Recommended Investment Strategy: Holistic (shift budget to your best campaigns and add more) and Growth (only add, never cut).
  • The forecast’s blind spot. It assumes your cost per conversion holds as you scale. It rarely does. The cost of the next customer usually rises.
  • Why it bites harder abroad. Entering Czechia, you can’t judge by instinct whether a marginal customer is still profitable, so a “spend more” nudge is riskier than at home.
  • The number that decides: marginal cost per customer, checked against real orders in your own system, not the 7-day forecast.
A budget dial pushed up beside a performance curve that flattens at the top

What Google actually launched

On 24 September 2026 Google Ads added two budget allocation modes to a tool called Recommended Investment Strategy. It works at account level: it reads your performance history, finds campaigns that could absorb more money, and shows a 7-day forecast of what extra spend would do to your clicks, conversions or conversion value. You enter either an additional weekly spend, or a target increase in a metric, and it fills in the rest.

The difference between the two modes looks technical but carries the whole point:

ModeWhat it doesNet effect on budget
HolisticReallocates budget from underused or less efficient campaigns to top performers, and adds new weekly spend.Higher
Growth“Strictly adds new budget to constrained campaigns… without any reduction on any of your existing campaigns.”Higher
Growth mode strictly adds new budget to constrained campaigns that can drive more results, without any reduction on any of your existing campaigns’ budgets.

Notice what’s missing from the menu: a mode that tells you to spend less. The tool also only appears when Google judges that a campaign is budget-constrained or could win more conversions at a favourable cost. It surfaces precisely when it wants you to add.

The blind spot in the forecast

Here is the mechanism that early users miss. The forecast assumes your cost per conversion stays flat as you pour in more money. It usually doesn’t, and the reason is simple economics.

You buy your cheapest, most ready-to-convert customers first, because they are actively searching for what you sell. When you add budget, those people are already spoken for. The system has to reach people further from a purchase, or bid into more expensive auctions. The first few thousand crowns buy cheap customers. The next buy dearer ones. A smoothly rising forecast curve never shows that.

The number that matters is marginal, not average. If you raise spend from CZK 50,000 to 70,000 and win 15 extra customers, the marginal cost is 20,000 ÷ 15 = about CZK 1,333 per customer, no matter how low your blended average looks. Compare that to your margin per customer, and you have your answer.

Why this bites harder when you’re entering Czechia

At home, you have instinct. You roughly know what a customer is worth, what a normal cost per lead looks like, and when a channel is running out of road. In a market you just entered, you have none of that yet, and the forecast fills the vacuum with a confident-looking graph.

That is the trap. A foreign brand launching in the Czech Republic is the exact profile Google’s tool loves: a fresh account with constrained early campaigns and “room to grow.” Scale too fast on the forecast’s word and you can spend your launch budget buying expensive, low-intent customers before you have even learned what a good Czech customer costs. The Czech market is smaller than Western Europe, so the pool of cheap, high-intent searches empties faster, and the marginal cost climbs sooner than you expect.

In your home market you feel when scaling stops paying. In a new one you have to measure it, because the forecast will always tell you to keep going.
— RKP Agency, Prague

What we’d do instead

  • Check measurement first. Make sure what Google counts as a conversion matches a real order or qualified lead in your CRM. If it doesn’t, the forecast is built on sand.
  • Read the shape of the curve, not the headline number. If it bends and flattens around the suggested spend, that’s diminishing returns. Add only up to the bend.
  • Compute the marginal cost. Pull just the increment: extra conversions for extra spend. If marginal cost exceeds your margin per customer, the recommendation fails.
  • Scale in 15–20% steps. Not the full jump the tool proposes. Let each step run two to three weeks so delayed conversions land, then decide on real revenue.

FAQ

What is Google Ads’ Recommended Investment Strategy?

An account-level tool, updated with new modes on 24 September 2026, that reads your performance history and recommends how much more to spend, showing an estimated 7-day impact on clicks, conversions or conversion value. You enter extra weekly spend or a target metric increase, and it forecasts the result. It only appears when Google judges a campaign is budget-constrained or could win more conversions at a favourable cost.

What’s the difference between Holistic and Growth mode?

Holistic reallocates budget from weaker campaigns to your best ones and adds new weekly spend. Growth only adds budget to constrained campaigns and cuts nothing. Both raise total spend; neither is a mode for spending less.

Should we trust the recommendation to spend more?

Treat it as a hypothesis, not an order. It usefully shows which campaigns are constrained and how steep the performance curve is. Its weakness is assuming your cost per conversion holds as you scale, which rarely happens. Decide on marginal cost per customer and real revenue in your own system, not the forecast.

Why is this riskier when entering a new market like Czechia?

Because you don’t yet know what a customer is worth or what a normal cost looks like locally, so you can’t sanity-check the forecast by instinct. The Czech market is also smaller, so cheap high-intent demand empties faster and marginal cost rises sooner. Measure before you scale.

Sources

  1. Google Ads Help — About Recommended Investment Strategy (Holistic and Growth modes; definitions quoted verbatim). support.google.com
  2. Search Engine Roundtable — Google Ads Investment Strategy Holistic & Growth Modes (24 September 2026). seroundtable.com
  3. PPC News Feed — Recommended Investment Strategy Adds Holistic and Growth Modes (September 2026). ppcnewsfeed.com

Scaling Google Ads in Czechia?

We help foreign brands read the numbers behind Google’s “spend more” nudge, compute marginal cost per customer, and scale only where it still pays — from Prague, in native Czech.

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