Google has added a number to its favourite piece of advice, "increase your budget". Recommendations for campaigns with Limited by budget status now show Weekly conversion value — the expected conversion value per week if the daily limit is raised. PPC specialist Thomas Eccel spotted the new format on September 24 and posted a screenshot on LinkedIn; there is no official announcement from Google — this is a quiet interface change.
What Google Shows
Previously the budget warning came only with a suggestion to raise the limit. Now a specific amount sits next to it: how much conversion value the campaign could earn per week with a bigger budget. According to Eccel's observation, the hint will also appear in the campaign's budget settings — including when you try to lower the budget.
The principle itself is not new: Google has long done similar modelling in Performance Planner — taking the campaign's accumulated statistics and auction data to forecast how a budget change would affect results. What is new is the placement. The forecast has been moved to where the advertiser makes the money decision.
The Link to the August Smart Bidding Change
On August 17 Google changed how target-based bid strategies (Target CPA and Target ROAS) work in budget-constrained campaigns: such campaigns used to overperform their targets, now the system holds the set target more precisely. The change covered Search, Shopping, Performance Max, Demand Gen, Display and other types, except App and Video Reach.
In the same help article Google explicitly recommends checking the forecast on the Recommendations page before increasing a budget, and waiting one to two conversion cycles afterwards before judging the result. The new Weekly conversion value is that very forecast — only now you do not have to look for it: it comes to the campaign that hit its limit.
What Google Cannot See in an Affiliate's Funnel
The number remains a forecast, and that is the key point. Google sees the auction and knows well how much additional traffic can be bought there. But what happens to that traffic afterwards, the platform knows only within the data it receives.
Take lead generation. Google sees a $20 lead and reasons that a bigger budget means more such leads. But if approval and sales are not fed back, the system does not know the extra leads may be worse — the value forecast "adds up" while the funnel's economics do not. Gambling is the same story: more registrations and deposits look good in the dashboard, but the quality of new players and the final ROI are not something Google calculates. On feeding real statuses back to Google via postbacks and offline conversions — see Postbacks and S2S Tracking.
Plus auction mechanics: after raising the limit, CPC may rise, conversion rate may drop, and the additional volume may cost more than the base. The forecast does not cancel that.
Should You Raise the Budget
If a campaign has been running for a while, consistently holds the required CPA or ROAS and got Limited by budget — the forecast is worth a look. But multiplying the limit just because Google drew a pretty number is questionable, especially after the August change, when "beating" the target no longer works the way it did.
The practical approach: save the forecast figure, raise the budget gradually, and after one to two conversion cycles compare with reality — not by CPA and CR from the dashboard, but by approval, FTD and final ROI from the tracker. After a few such tests you will know how far Google's forecasts can be trusted on a specific account and GEO. On calculating the break-even point when scaling — Affiliate Math.
Bottom Line
Google made the Limited by budget recommendation more persuasive — a number now sits next to the call to spend more. For an affiliate it is one more reference point when scaling, not an instruction. The budget decision is still made on the funnel's own numbers, not on a forecast from a platform with an interest in higher spend.
If you have already seen the new recommendation and compared forecast with fact — share in the contextual advertising section of the forum.