LEARNING_PHASE_INCOMPLETE Ad Group in Learning Phase

Your ad group hasn't accumulated enough conversion events (typically 50 conversions) within the learning phase window to exit and optimize effectively. Performance may be volatile during this period.

What causes this error?

Your ad group hasn’t accumulated enough conversion events (typically 50 conversions) within the learning phase window to exit and optimize effectively. Performance may be volatile during this period.

How to fix it

Be patient—don’t make significant changes during the learning phase as each change restarts it. If the ad group can’t get 50 conversions in 7 days, consider:

1. Using a higher-funnel optimization event (e.g., AddToCart instead of Purchase)
2. Increasing your budget
3. Broadening targeting
4. Lowering your CPA bid