> ## Documentation Index
> Fetch the complete documentation index at: https://docs.adstellar.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Glossary

> Definitions of common advertising and AdStellar terms.

Quick reference for advertising and AdStellar terminology, listed alphabetically.

## A

**ABO (Ad Set Budget Optimization)** — Budget is set and controlled at the ad set level. Each ad set gets its own budget.

**Ad Set** — A group of ads that share targeting, budget, schedule, and optimization settings. Part of a campaign.

**Advantage Audience** — Meta's AI-powered audience expansion. When enabled, Meta can show ads to people outside your specified targeting if it predicts they'll convert.

**Advantage Campaign Budget** — See CBO.

**AI Credits** — The usage currency for AdStellar's AI-powered features, priced at $0.002 per credit ($1 = 500 credits). Consumed when generating images, videos, editing creatives, rendering lip-sync, or launching AI campaigns. Monthly plan credits expire 60 days after they're granted; bonus and referral credits never expire. See [How AI Credits Work](/billing/credits-explained).

**Attribution Window** — The time period after a click or view during which Meta credits a conversion to your ad. Default: 7-day click, 1-day view.

## B

**Brand Kit** — Your brand identity configuration in AdStellar, including brand name, colors, fonts, buyer profiles, and aesthetic preferences. Used by AI to generate on-brand creatives. See [Brand Kit](/guides/create/brand-kit).

## C

**CBO (Campaign Budget Optimization)** — Budget is set at the campaign level. Meta distributes it across ad sets based on performance. Also called "Advantage Campaign Budget."

**Conversion Event** — A specific action you want people to take on your website (e.g., Purchase, Lead, Add to Cart). Tracked by Meta Pixel.

**CPA (Cost Per Acquisition)** — The average cost to acquire one conversion. Calculated as Spend ÷ Results.

**CPC (Cost Per Click)** — The average cost per link click. Calculated as Spend ÷ Clicks.

**CPM (Cost Per Mille)** — The cost per 1,000 impressions. Calculated as (Spend ÷ Impressions) × 1,000.

**Canvas** — AdStellar's central workspace for creating AI-powered image ads, video ads, and UGC avatar videos. See [Canvas Overview](/guides/create/creative-hub-overview).

**Creative Template** — A reusable set of media assets and copy variants in AdStellar that can be combined to create multiple ad variations.

**CTR (Click-Through Rate)** — The percentage of impressions that resulted in a click. Calculated as Clicks ÷ Impressions × 100.

## D

**DSA (Digital Services Act)** — EU regulation requiring ad transparency, including beneficiary and payer information on ads.

## I

**Image Editing** — AdStellar's chat-based AI editor for refining generated images. Describe changes in plain language and AI applies them. See [Editing Generated Images](/guides/create/image-ads#editing-generated-images).

## L

**Learning Phase** — Meta's initial optimization period for new ad sets. Typically requires \~50 conversions. Performance may be volatile during this period.

**Lip-Sync Render** — An optional post-generation step for video ads that applies pro lip-sync processing to align lip movements with audio. Produces the highest quality video output. See [Preview and Final Render](/guides/create/video-ads#preview-and-final-render).

## M

**Media Library** — Where you store and manage all creative assets (images and videos) in AdStellar. Assets uploaded here are available when building campaigns. See [Media Library](/guides/create/media-library).

**Meta Pixel** — A piece of code on your website that tracks visitor actions and sends them to Meta for ad optimization and reporting.

## O

**Optimization Goal** — What you tell Meta to optimize delivery for within your objective (e.g., Landing Page Views, Offsite Conversions, Lead Generation).

## P

**Project** — An organizational folder in AdStellar for grouping related generated creatives together. See [Projects](/guides/create/projects).

**Proven Winners** — Real ad combinations from your campaign history that delivered strong results. Used for scaling. See [Proven Winners](/guides/insights/proven-winners).

## R

**Result Metric** — The primary KPI you choose in AdStellar to measure campaign success. Determines how performance data is displayed and ranked.

**ROAS (Return On Ad Spend)** — Revenue generated per dollar spent. Calculated as Conversion Value ÷ Spend.

## U

**UGC Avatar Video** — An AI-generated video featuring a realistic avatar talking to camera about your product. Designed to look like authentic user-generated content. See [UGC Avatar Videos](/guides/create/ugc-avatar-videos).

## W

**Workspace** — An organizational container in AdStellar that isolates campaigns, templates, media, and analytics. Used to separate clients, brands, or projects.