Article

Conversions API

Meta for Developers Free Advanced

The auction runs on Meta's estimate of who will buy, and that estimate is only as good as the purchase data you send back. This is the official spec for sending it server side instead of relying on the browser pixel alone.

  • Conversions API sends events like purchase directly from your server, so it is not blocked by iOS privacy settings or ad blockers
  • Running it alongside the pixel with deduplication improves Meta's estimated action rate for your ads
  • A weak signal here is a common, invisible reason two brands with identical creative get different CPMs
Open on developers.facebook.com ↗

The question it answers

  1. How do Meta (Facebook & Instagram) ads actually work?

Read with it

  1. An Indian agency playbook that puts numbers on the UGC-first approach: a 70/30 prospecting-retargeting split and 10-15 UGC... Sociolabs Article How D2C Brands in India Can Achieve 3x-4x ROAS with Meta Ads Sociolabs
  2. The single clearest explanation of why the highest bidder doesn't win, spelled out by Meta itself: total value = bid x... Meta Business Help Center Article About Ad Auctions (Meta Business Help Center) Meta
  3. Advantage+ is now where most D2C prospecting spend lives, so read Meta's own explanation of what it automates (targeting,... Meta for Business Article Advantage+ Shopping Campaigns: Automated Shopping Ads Meta
  4. This is Meta's own plain language explainer of the auction, the primary source for the three inputs your ad is actually judged... Meta for Business Article Facebook Ad Auctions Explained Meta for Business
  5. Once you know the auction has a bid component, this is the clearest breakdown of which bid strategy actually controls what,... Jon Loomer Digital Article Facebook Ads Bid Strategies: Lowest Cost, Cost Cap, Bid Cap Jon Loomer
  6. Video The BEST Facebook Ads Bidding Strategy Ben Heath
eChai Partner Brands The partnership →