Why it happens
A new or switched bid strategy
A new or switched bid strategy
Moving from Maximize clicks to Maximize conversions, or adding a target CPA or ROAS, starts learning.
A big change to the target or budget
A large jump in target CPA, target ROAS or budget changes what the strategy is optimizing for.
A change to conversion actions
Adding, removing or switching the primary conversion action changes the signal the strategy learns from.
Composition changes
Adding or removing many campaigns, ad groups or keywords under a portfolio strategy.
Low conversion volume
With few conversions a week, the strategy takes longer to gather enough data to settle.
How to fix it, step by step
Read the status
In the Campaigns table, look at the Bid strategy type column. Hover Learning to see the reason, like a recent change or a setting change.
Find what triggered it
Open Change history and filter for bidding, budget and conversion goal changes in the last two weeks.
Stop stacking changes
Leave bids, targets, budget and goals alone until learning ends. Batch the next set of changes into one edit.
Judge on the right window
Compare performance over at least one full conversion cycle, by conversion time, not day by day.
Move targets in small steps
When you do change a target CPA or ROAS, move it 10 to 20% at a time.
Steps checked against Google Ads Help: Bid strategy statuses; Google Ads Help: About Smart Bidding; Google Ads Help: About change history.
Sprites fixes this
Or let Sprites fix it
Sprites shows what restarted learning and makes the next bidding change in one step, not five.
What Sprites does
- Lists every bidding, budget and goal change in the last 30 days, and what happened to CPA after each one.
- Compares actual CPA with the target, so you know whether the target is realistic.
- Changes the bid strategy, target CPA or target ROAS in a single change you approve.
What it doesn't do
- It does not read the Learning label itself, only the changes and results around it.
- It cannot make learning finish faster than the conversions arrive.
Questions
How long does Google Ads bid strategy learning take?
Google says up to around 50 conversion events or three conversion cycles. Accounts with lots of conversion history often learn faster.
What resets the learning period?
A new or changed bid strategy, a large change to the target or budget, changes to conversion actions, and adding or removing many campaigns under a portfolio strategy.
Should I pause a campaign that is learning?
No. Pausing and re-enabling can restart learning. Let it run unless it is spending badly beyond your tolerance.
Why did my CPA go up during learning?
The strategy is testing bids to recalibrate. Some volatility is normal; judge it after learning ends.
Can I change the budget while it is learning?
Small changes are fine. Large ones can push it back into learning, so move in steps.
Let Sprites fix it
Connect the account. Sprites finds the cause, stages the change and waits for your approval.