Learning Phase

Measured as

Measure Learning Phase with a fixed attribution window, conversion event, and spend basis before comparing campaigns or creative tests.

Misused when

• Resetting campaigns repeatedly and never reaching stable performance.
• Optimizing for a low-quality conversion that is easy to get but not valuable.

Operator takeaway

• Avoid changing targeting, budget, and creative all at once.
• Use stable conversion definitions and enough volume to let learning complete.
• Use Learning Phase only inside a stable attribution rule, conversion definition, and time window so campaign comparisons stay honest.
• If performance changes, check whether the metric moved for a real business reason or because the measurement setup changed underneath you.

Next decision

• Read Paid ads bidding & budgeting hub: max CPC, target CPA, and break-even targets if the decision depends on interpretation, policy, or trade-offs beyond the raw formula.
• Decide which report owns Learning Phase before comparing campaigns, channels, or creative tests.