48 essential terms for running paid social ads on Meta — from core efficiency metrics like CPM and CPA to creative testing concepts like thumbstop rate and hook rate. Team-authored reference.
This is Motion's glossary of 48 essential Meta advertising terms. Organized across five sections that mirror how ad accounts actually work — from the efficiency metrics you report on, through conversion events and creative testing concepts, to auction basics and targeting infrastructure.
Every term has its own page with definition, formula (where relevant), and cross-links to related terms and research.
How many times your ad was shown, period. One person can rack up multiple impressions if they see your ad more than once.
The number of unique people who saw your ad at least once. This is different from impressions because it accounts for th.
Average number of times each person saw your ad. Calculate it by dividing impressions by reach. Frequency above 3-4 ofte.
A click is straightforward: it’s someone clicking on your ad (or tapping if they’re on mobile). Not all clicks are equal.
How much you're spending to get one conversion. Divide your spend by your conversions and you've got your CPA.
CAC is similar to CPA, but goes a bit deeper. CAC specifically refers to acquiring new customers, which requires trackin.
The total revenue a customer generates over their entire relationship with your brand. High LTV lets you afford higher C.
Revenue divided by spend. A ROAS of 4.0 means you made $4 for every $1 you spent. This is the standard efficiency metric.
Your blended ROAS across all marketing channels. Take total revenue and divide by total marketing spend. MER gives you a.
The average revenue you make per order. If your AOV is $100 and your CAC is $30, you're probably in good shape. If your .
A conversion event that fires when someone views a product detail page on your site. This matters because it shows shopp.
The event that fires when someone adds a product to their cart. It's a signal that someone is seriously considering a pu.
Triggered when someone starts entering payment or shipping info. This is a stronger intent signal than add-to-cart, but .
The moment someone completes a transaction. This is the event most performance advertisers optimize for because it's the.
How long after someone sees or clicks your ad you can still credit them for a conversion. A 7-day click window means if .
A conversion credited to someone who saw your ad but didn't click it, then converted later through another path. This ca.
The early period after launching or significantly editing an ad set when the algorithm is still figuring out who to show.
The warning that shows up when your ad set isn't getting enough conversions to stabilize. Usually means your budget is t.
Status indicators for your ad sets. **Active** means running normally. **Paused** means you turned it off. **Limited** m.
Thumbstop rate and hook rate are the same metric: the first 3 seconds of your creative designed to stop someone from scr.
How well your creative keeps attention after the hook. Strong hold rates mean your ad is keeping people watching, wherea.
Creative fatigue happens when you've shown the same creative to the same audience too many times. Frequency climbs, CTR .
A **concept** is the big structural idea; before/after transformation, customer testimonial, founder rant, product demo.
Ads shot in a lo-fi, authentic style that looks like it came from a real person, not a brand. It typically features crea.
Running ads from a creator's or partner's account instead of your brand page, with their permission. This lets you tap d.
A structured test where you isolate one variable (hook, concept, audience, placement, etc.) and compare performance with.
A measurement approach that compares people who saw your ads versus a holdout group who didn't, telling you how many inc.
The top layer of Meta's three-tier structure (Campaign > Ad set > Ad). Here's where you tell Meta what you're optimizing.
The middle layer where the real strategic decisions happen. You're setting budgets, defining audiences, choosing placeme.
The thing people actually see when they're scrolling. Your video or image, the copy that sells it, your headline, descri.
What you want Meta's system to maximize. Choose Sales if you want purchases. Leads if you're collecting contact info. Tr.
The specific action you're asking Meta to drive more of. Could be purchases, add-to-carts, leads, whatever conversion ma.
How you want Meta to manage your bids in the auction. **Lowest cost** means maximize results for your budget. **Cost cap.
CPM is one of the most confusingly-named metrics in advertising. Many people assume that mille is short for million, but.
How much each click costs you. This number gets influenced by auction dynamics and creative quality. If your CPC is clim.
The percentage of people who see your ad and actually click it. This is one of your best early signals for creative qual.
Minimal targeting constraints where you just set basics like country and age, then let the algorithm find your buyers ba.
An audience built from your own first-party data; website visitors, customer lists, app users, people who've engaged wit.
An audience of new people who share characteristics with your source audience, like past purchasers or high-value custom.
Targeting people who've already interacted with your brand in some way—visited your site, engaged with your content, add.
Meta's heavily automated campaign type for ecommerce where the system controls most of the targeting and delivery decisi.
**CBO** sets your budget at the campaign level and lets Meta allocate spend across ad sets. **ABO** sets budgets at the .
The piece of code you install on your website to track what people do after clicking your ads. It fires events back to M.
A server-to-server connection that sends conversion events directly from your server to Meta, bypassing browser limitati.
**Standard events** are pre-defined actions Meta already understands—Purchase, ViewContent, AddToCart, Lead, etc. **Cust.
The system for ranking which conversion events matter most for your domain, used when tracking is limited by privacy res.
Where your ad actually appears across Meta's properties. Instagram Reels performs differently than Facebook Feed, which .
A measure of whether the performance difference between two ads or ad sets is actually real or just random noise. You ne.