What is Meta (Facebook) Ads?

Meta Ads (still commonly called Facebook Ads, though the Facebook brand in ad tools has been unified under Meta since 2021) is Meta’s paid traffic ecosystem across Facebook, Instagram, Messenger, and Audience Network. Campaigns are managed in Meta Ads Manager (or the Marketing API); one campaign can serve multiple placements inside Meta’s inventory.

For media buying and traffic arbitrage, Meta is a major social traffic source: interest and behavioral targeting, strong conversion optimization algorithms, and large mobile-first scale. Billing models include CPM, CPC, and optimization toward target actions (leads, purchases, app installs).

Account structure

Business Manager (Meta Business Suite). Container for ad accounts, pixels, catalogs, and team permissions.
Ad account. Budget, currency, payment method; tied to tracking domains and policies.
Campaign → Ad set → Ad. Campaign sets the objective (Traffic, Conversions, App promotion, etc.); ad set holds audience, budget, placements; ad holds creative and copy.

Tracking and attribution

Meta uses the Meta Pixel (browser JavaScript) and Conversions API (CAPI) — server-side events, aligned with industry Conversion API terminology. A typical tracker setup: tracker campaign URL → landing with pixel → postback to tracker → optional S2S back to Meta for optimization. fbclid and UTM parameters help match clicks to conversions; after iOS limits (ATT), pixel-only attribution dropped and operators routinely pair pixel with CAPI for reliable optimization.

Audiences

Custom audiences from emails, phones, site visitors, or CRM lists. Lookalikes expand toward users similar to converters. Retargeting uses pixel/app events. In arbitrage, cold audiences test creatives and offers; warm audiences scale funnels with positive ROI.

Moderation and limits

Meta strictly moderates verticals: gambling, crypto, health claims, adult. Violations lead to disapprovals and account bans. Aggressive funnels often hit moderation and misleading-content policies. The compliant path uses white hat creatives, transparent landings, and Special Ad Categories where required.