Glossary · Digital Marketing

Meta Certified Digital Marketing Associate (100-101) Glossary

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A free Meta Certified Digital Marketing Associate (100-101) glossary: Meta ads terms (Ads Manager, campaign objective, audience, CPM, ROAS) in plain English.

By The Exam Atlas Editorial Team · Verified 2026-06-06

Plain-English definitions of the core terms for the Meta Certified Digital Marketing Associate (exam 100-101). Simplified for learning; Meta’s official documentation is authoritative.

TermDefinition
Meta technologiesMeta’s family of apps and services used for advertising, mainly Facebook and Instagram.
Meta BlueprintMeta’s official training and certification programme for advertising on its platforms.
Ads ManagerMeta’s main tool for creating, editing and reporting on ad campaigns.
Meta Business SuiteA free tool to manage a business’s Facebook and Instagram presence in one place.
Business ManagerA tool for organising ad accounts, Pages, people and payment methods for a business.
Facebook PageA business’s public profile on Facebook; required before running most ads.
CampaignThe top level of an ad, where you choose the objective.
Ad setThe middle level, where you set audience, placement, budget and schedule.
AdThe lowest level - the actual creative (image, video, copy, link) people see.
Campaign objectiveThe result you optimise for, such as awareness, traffic, engagement, leads or sales.
Core (saved) audienceAn audience defined by demographics, interests, behaviours and location.
Custom AudienceAn audience built from your own data, such as site visitors or a customer list.
Lookalike AudienceA new audience modelled on a source audience to find similar people.
PlacementWhere an ad appears, such as Facebook Feed, Instagram Feed, Stories or Reels.
BudgetThe amount you set to spend, either per day (daily) or over the run (lifetime).
Ad auctionThe system that decides which ad to show and what it costs, based on bid, quality and estimated action.
ReachThe number of unique people who saw an ad.
ImpressionsThe total number of times an ad was shown (can include repeats).
CPMCost per 1,000 impressions.
CPCCost per click.
CTRClick-through rate - clicks divided by impressions.
ConversionA tracked valuable action, such as a purchase or a lead.
ROASReturn on ad spend - revenue generated divided by amount spent.
Meta PixelA piece of code on a website that tracks actions for measurement and optimisation.
A/B testComparing two versions of an ad or setting to see which performs better.

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