Most wasted PPC spend hides in two places: keywords bidding past their value, and search terms that click but never convert. SellerOS attacks both — with math you can audit on every row.
The optimizer is a proportional controller pointed at your target ACoS — each keyword gets exactly one of five actions, and the label always matches the bid direction:
Raise
The keyword converts below your target ACoS — there's headroom. The optimizer bids up proportionally to buy more volume while staying on target.
Lower
Converting, but past target. The bid comes down proportionally to (target ÷ measured ACoS), rate-limited so one bad day can't crater a keyword.
Cut
Enough clicks to judge and zero orders. Stop the bleed — the biggest single source of wasted ad spend in most accounts.
Explore
Too few clicks to judge fairly. The optimizer keeps a modest bid to gather data instead of killing a keyword before it had a chance.
Hold
On target within tolerance. No change — churn for its own sake is how accounts drift.
Set the account-level target ACoS once; the optimizer computes each keyword's next bid against it. Change the target and every suggestion recomputes — without reverting bids you already applied.
Bids move at most a bounded percentage per cycle. Signal, not noise, moves your account.
Every suggestion says why: “ACoS 44% over target — lowering bid.” You can audit the logic before you apply it, one keyword or all pending at once.
The analyzer sorts every customer search term into negate / harvest / reduce-bid / keep, and totals the wasted spend you'd recover by negating.
Break-even ACoS and maximum-bid calculators from your real margins — so 'target ACoS' is a number you derived, not a vibe.
Track spend against the month's budget with on-track / over / under status and a recommended daily rate for the remainder — before the overspend, not after.
No. The optimizer computes suggestions with reasoning; you apply them — per keyword or all pending at once. Applied bids persist, including when you later change the account target.
Keywords below the minimum-clicks threshold stay in explore mode with a modest bid until there's enough data to judge them fairly.
Derive it: the break-even ACoS calculator computes the ceiling from your real unit margins, and you set the target below it with the profit cushion you want.