ORBIT TODAY ·
This month:
Google is changing how budget-limited campaigns behave when they use target-based bidding.
The short version?
If you told Google that a $75 CPA works for your business, while the campaign has been averaging $40, Google may now use more of that efficiency gap to chase additional conversions.
WHAT THIS BRIEFING GIVES YOU
Why an old target can suddenly become expensive.
When giving Google more room could actually help you scale.
What every media buyer should check before touching the campaign.
WHAT CHANGED
Target CPA: $75
Actual average CPA: $40
And Google might happily keep delivering around $40.
Everyone wins.
The media buyer looks clever.
The spreadsheet gets a green cell.
Nobody asks why the target still says $75. Since August 17, Google has been rolling out a change for Limited by budget campaigns using affected target-based bidding strategies.
Those campaigns may now deliver closer to the target you actually entered.
So Google can effectively look at that gap and say:
“You told me $75 CPA works for you. Why am I treating $40 like the limit?”
Google isn’t automatically changing your budget or target.
It is simply becoming more willing to use the room already sitting inside the target you gave it.
WHY IT MATTERS
This could be either useful scale or a fairly expensive misunderstanding.
Imagine a U.S. sneaker brand has:
Target CPA: $75
Actual CPA: $40
If the business genuinely knows it can profitably acquire a customer at $60, $70 or even around $75, then the extra room could be useful.
Google may capture additional conversions instead of protecting an efficiency level the advertiser never actually asked it to maintain.
And some businesses have more room than others.
A sneaker customer might buy shoes today.
Then later:
A T-shirt.
A bag.
Another pair of shoes.
The first sale might only be the beginning of that customer’s value. Now take a business selling only mattresses. Someone buys one.
Great.
See you in 2034.
If repeat purchases are limited, that business may have far less room to tolerate a higher acquisition cost.
The important question isn’t:
“Will Google spend more?”
It’s:
“How much can this business actually afford to pay for a customer?”
WHAT TO WATCH
Here’s the dangerous setup:
Target CPA: $75
Actual CPA: $40
Real profitable CPA: $55
That $75 target may have been harmless while Google kept outperforming it.
Now?
It could become permission.
Don’t assume:
“Google knows I really want $40 because that’s what it has always delivered.”
Google knows what you told it.
That’s different.
And don’t assume a higher CPA automatically means Google is finding better customers.
It may simply be finding more conversions at a higher average acquisition cost.
If customer lifetime value matters to your economics, you still need to prove that those customers actually:
Buy again.
Retain.
Generate margin.
Produce enough future profit to justify the higher acquisition cost.
Otherwise LTV becomes a very sophisticated way of saying:
“Hopefully they’ll come back.”
DON’T JUST HANG AROUND WAITING FOR THE CHANGE. OPTIMIZE YOUR TARGETS.
DECISION
ALIGNED → OBSERVE
Your target genuinely reflects what the business can afford.
The campaign remains profitable even if average CPA moves closer to it.
Don’t panic.
Google may simply have more room to scale.
PROBLEM → CORRECT
Your target says $75.
Your business starts sweating at $55.
That target is wrong.
Correct it.
A number someone typed into Google Ads six months ago should not become today’s spending permission.
UNCLEAR → INVESTIGATE
You don’t actually know your profitable CPA.
Before adjusting bidding, work backwards from:
Customer value.
Margins.
Repeat purchases.
Returns.
Retention.
Actual profit.
Then decide what target Google should be working toward.
Buddha said: go within, not outside.
Because Google can find the room.
Your job is knowing how much room you can afford to give it.