Basis: Optmyzr’s sponsored analysis of 5,886 accounts on seasonality adjustments, Google’s rewritten Smart Bidding learning page (October 21, 2026), the Display and partner spend controls announced October 14, and Meta’s in-app product browsing default on October 28. The analysis compares two groups and is not a controlled experiment.
Bidding
- Decide whether you need a seasonality adjustment. Optmyzr’s data suggests adjustments on predictable events can overbid on top of what Smart Bidding already expects.
- Change tROAS targets directly if you want more volume.
- Avoid repeated target changes within one conversion cycle, and keep one consistent primary conversion goal.
Spend controls
- Review Display and Search partner spend; consider channel prioritisation and a budget allocation cap (best effort only).
- Set CPC and pacing alerts.
Feed and site
- Check Merchant Center price, stock and image quality, and fast-shipping labels.
- Decide whether to opt out of Meta’s in-app product browsing before October 28 if you also advertise there.