# How Zinn® Ads chooses bidding, writes better ads and fixes Quality Score
The bidding ladder and the data gate
Each campaign moves one bidding step at a time, from clicks to conversions to a target cost or return, only once the campaign itself has enough conversions: at least 15 in the last 30 days before any conversion strategy (with values for a value strategy), and the network's published minimum plus a margin for the steps above. A campaign still bidding for clicks while the account tracks conversions is moved to Maximise conversions with no target on Google. After a switch the campaign learns for 14 days, then the result is measured, and if it got worse it steps back.
An objective per campaign
Give each campaign an objective: leads at a target cost, revenue at a target return, profit, a place at the top of the page, your brand, or traffic. Nothing changes until you approve it.
Top of the page and Quality Score
A top-of-page goal is measured every day and what holds it back is named in order: a missing main keyword, ad relevance, the landing page, the expected click rate, then the bid and the budget. Quality Score fixer names each low-score keyword's weakest part and the fix, and on sites hosted with us links the cache and CDN settings to try.
Searches judged against what you sell
What each campaign sells is written from the campaign's ads, keywords and landing pages. A search for something you do not sell is blocked from its first click, and a keyword that does not fit is shown to you to pause. Correct it in your own words. A campaign shown to nobody because its keywords are too narrow gets keywords with measured searches added, and a reach test.
Ads that win
A/B tests of your ads compares two responsive search ads and calls a winner only at your confidence. A winning ad can be copied to your other campaigns, countries and accounts on the same website, translated where the language differs; each copy waits for your approval. The Performance Max card shows asset ratings, channels, top searches, brand exclusions and negatives, and nothing changes until you approve it.
Step-by-step guide
Choose what the Zinn® Ads autopilot may change on zinnads.com walks through it with screenshots of the real screens. Every Zinn® Ads guide: zinnads.com/kb.