Paid acquisition, in plain language.

A/B test

A controlled comparison between two versions of one variable, such as an ad hook, landing-page headline, audience, or offer presentation.

A useful A/B test changes one meaningful variable, sends enough comparable traffic to both versions, and has a decision attached to the result. Testing several major changes at once may produce a winner, but it usually cannot explain why it won.

Account structure

The way campaigns, ad sets or ad groups, audiences, ads, budgets, and conversion goals are organized inside an advertising platform.

Good structure gives the platform enough data to learn while preserving the distinctions a team actually needs for decisions. Excessive fragmentation can starve campaigns of data; excessive consolidation can hide important differences.

Ad auction

The real-time process an advertising platform uses to decide which eligible ad appears, where it appears, and what the advertiser pays.

Auctions generally weigh the bid, predicted action rate, ad quality, user experience, and other platform-specific factors. The highest monetary bid does not always win.

Ad copy

The written portion of an advertisement, including its headline, primary text, description, offer language, and call to action.

Effective copy matches the audience's level of awareness, makes a specific promise, supplies credible proof, and gives the reader a clear next step.

Ad fatigue

A decline in response that occurs after an audience sees the same creative or message too often.

Common signs include rising frequency, falling click-through rate, increasing acquisition cost, and weaker conversion quality. Fatigue is addressed through new concepts and messages—not only cosmetic variations.

Ad rank

A value used by Google Ads to determine whether an ad is eligible to show and its position relative to other ads.

Ad Rank considers the bid, ad and landing-page quality, auction competitiveness, search context, thresholds, and expected impact of assets. It is recalculated for every auction.

Ad relevance

The degree to which an ad's message and experience align with the audience, search intent, placement, and promised destination.

Platforms estimate relevance differently, but weak alignment commonly produces lower response, poorer conversion, or higher costs. Relevance should not be pursued through vague messaging that attracts the wrong people.

Ad set

The Meta Ads campaign level where an advertiser typically controls audience, placement, schedule, optimization event, and budget when campaign-level budgeting is not used.

An ad set is comparable to an ad group in Google Ads, though the platforms organize and optimize delivery differently.

Assisted conversion

A conversion in which a channel or campaign contributed to the customer journey without receiving final-touch credit.

Assisted-conversion reporting helps reveal discovery and consideration activity that last-click reporting undervalues, but an assist still does not prove the interaction caused the conversion.

Attribution

The process of assigning credit for a conversion or sale to one or more marketing interactions.

Attribution is an interpretation of customer behavior, not a perfect record of causation. Platform reports, analytics tools, customer surveys, and backend revenue data often disagree because they observe different events and use different rules.

Attribution window

The period after an ad click or view during which a later conversion can be credited to that ad.

A longer window usually reports more attributed conversions. Comparisons are only meaningful when the window, conversion event, and attribution method are consistent.

Audience

The group of people an advertising system is eligible to reach, defined through location, demographics, interests, behavior, customer data, intent signals, or platform prediction.

Modern platforms increasingly use broad audiences and machine learning. The offer, creative, conversion signal, and exclusions often influence who is reached as much as manually selected targeting.

Automated bidding

A platform-controlled bidding system that adjusts bids in real time to pursue a specified objective, such as conversions, conversion value, or target acquisition cost.

Automation works best when the conversion data is accurate, sufficiently frequent, and aligned with business value. Poor inputs can make an automated system efficiently pursue the wrong outcome.

Average order value (AOV)

The average revenue generated by each completed order during a defined period.

Bundles, order bumps, pricing, product mix, and promotions can change AOV. Higher AOV can support a higher acquisition cost, provided margin and refund behavior remain healthy.

AOV = total order revenue ÷ number of orders

Bid strategy

The rule or automated approach used to determine how aggressively an advertising platform bids in each auction.

Examples include maximize conversions, maximize conversion value, target CPA, target ROAS, manual CPC, and impression-share strategies. The right choice depends on data volume, business economics, and campaign purpose.

Blended ROAS

Total business revenue divided by total advertising spend across platforms, rather than revenue attributed by a single ad platform.

Blended ROAS reduces dependence on competing platform claims, but it still includes revenue influenced by organic, email, referral, and repeat-purchase activity.

Blended ROAS = total revenue ÷ total ad spend

Bounce rate

A measure of sessions that do not meet an analytics system's engagement criteria or continue to another meaningful interaction.

Definitions vary by analytics tool. A high bounce rate may indicate poor message match, slow loading, accidental clicks, weak content, or simply a page that answers a question without requiring another action.

Brand lift

A measurable change in awareness, recall, consideration, preference, or intent associated with exposure to advertising.

Brand-lift studies typically compare surveyed exposed and control groups. Lift can reveal effects that immediate conversion reporting misses, especially for long buying cycles.

Broad targeting

An audience approach that gives the advertising platform relatively few targeting restrictions beyond essential constraints such as geography and age.

Broad targeting allows the platform to use conversion history and creative response to find likely buyers. It is not the same as having no strategy: signal quality, creative, exclusions, and economics still determine success.

Budget pacing

The management of advertising spend so a campaign uses its budget at an appropriate rate across a day, month, promotion, or other period.

Good pacing accounts for seasonality, conversion lag, expected high-value periods, platform overspend tolerances, and whether the goal is strict budget control or maximum profitable volume.

Campaign budget optimization (CBO)

A Meta Ads setting that places budget at the campaign level and lets the platform distribute spend among eligible ad sets.

CBO can improve allocation efficiency when ad sets share a goal, but minimums, maximums, audience overlap, and unequal opportunity can influence where spend goes.

Campaign objective

The outcome an advertising platform is instructed to prioritize, such as awareness, traffic, leads, sales, app activity, or conversion value.

The objective changes which people the platform seeks and how delivery is optimized. A traffic objective may generate inexpensive visits without generating qualified buyers.

Cannibalization

A situation in which one campaign, channel, promotion, or product captures outcomes that would otherwise have gone to another part of the business.

Brand search campaigns, retargeting, discounts, and overlapping audiences can appear highly efficient while shifting rather than creating demand. Holdouts and blended results help identify the effect.

Click ID

A unique identifier added to an ad click so platforms and analytics systems can connect later activity with the originating interaction.

Examples include Google's GCLID and Microsoft's MSCLKID. Preserving click IDs through redirects, forms, CRM records, and consented offline uploads improves measurement.

Click-through rate (CTR)

The percentage of impressions that produce a click.

CTR can reveal whether a message earns attention, but a high CTR is not automatically valuable. Curiosity-driven clicks can lower traffic quality, and platform definitions differ between all clicks and link clicks.

CTR = clicks ÷ impressions × 100

Cohort analysis

The comparison of groups of customers or leads that share a starting period, acquisition source, offer, or other defining characteristic.

Cohorts reveal differences in retention, repeat purchase, lead quality, and lifetime value that aggregate reporting can hide.

Contribution margin

Revenue remaining after subtracting the variable costs required to deliver the sale, before fixed operating costs.

Contribution margin provides a more useful acquisition ceiling than revenue alone. The included costs should be documented and may include product cost, fulfillment, payment fees, commissions, and refunds.

Contribution margin = revenue − variable costs

Conversion

A defined action that matters to the business, such as a purchase, qualified lead, booked call, application, subscription, or completed registration.

The event selected as the primary conversion becomes a teaching signal for the ad platform. It should be frequent enough to optimize and close enough to revenue to represent meaningful value.

Conversion API (CAPI)

A server-to-server method of sending website, CRM, or business events to an advertising platform, most commonly referring to Meta's Conversions API.

CAPI can make measurement more resilient than browser-only tracking, but it requires correct event matching, deduplication, consent handling, and quality controls.

Conversion lag

The time between an advertising interaction and the conversion eventually associated with it.

Recent performance can look artificially weak when conversions take days or weeks to mature. Budget decisions should account for the normal lag distribution and reporting delays.

Conversion lift

The incremental increase in conversions attributable to advertising, usually estimated by comparing randomized exposed and control groups.

Conversion-lift studies measure causal impact more directly than attribution reports, but they require adequate scale, clean experimental design, and enough time to detect a meaningful difference.

Conversion rate

The percentage of visitors or clicks that complete a specified conversion.

Always state the denominator and event when discussing conversion rate. A landing-page opt-in rate, sales-call close rate, and purchase rate describe different parts of the customer journey.

Conversion rate = conversions ÷ eligible visits or clicks × 100

Cookie

A small piece of data stored by a browser that can support sessions, preferences, analytics, advertising measurement, and audience recognition.

First-party and third-party cookies operate differently. Browser restrictions, expiration rules, consent requirements, and device changes make cookie-based customer journeys incomplete.

Cost per acquisition (CPA)

The average advertising cost required to generate a defined acquisition or conversion.

CPA is only useful when the acquisition is clearly defined. A lead CPA cannot be compared directly with a customer CPA, and a low CPA can still be unprofitable when lead quality or customer value is weak.

CPA = ad spend ÷ acquisitions

Cost per click (CPC)

The average amount paid for each click.

CPC is influenced by auction competition, predicted response, relevance, audience, placement, and creative. Lower CPC is helpful only when the resulting traffic maintains quality.

CPC = ad spend ÷ clicks

Cost per lead (CPL)

The average advertising cost required to generate one lead.

CPL should be evaluated alongside qualification rate, sales conversion rate, speed to lead, and customer value. The cheapest lead source is not necessarily the most profitable.

CPL = ad spend ÷ leads

Cost per mille (CPM)

The cost to deliver one thousand ad impressions.

CPM reflects auction pressure and the platform's expected value of showing the ad. It varies by audience, geography, placement, season, objective, and creative quality.

CPM = ad spend ÷ impressions × 1,000

Creative brief

A working document that defines the audience, problem, objective, offer, message, proof, deliverables, constraints, and intended action for creative production.

A strong brief gives creators strategic boundaries without prescribing every execution detail. It also creates a record of the hypothesis behind each asset.

Creative concept

The central idea behind an advertisement: the promise, problem, story, demonstration, proof, or perspective that gives the ad its meaning.

A concept is larger than a format or visual treatment. Changing a background color creates a variation; changing the reason a customer should care creates a new concept.

Creative diversification

The deliberate production of ads that vary in concept, message, format, visual language, spokesperson, and stage of awareness.

True diversification gives an algorithm more ways to match messages with people and reduces dependence on one winning ad. Minor edits to the same asset provide limited diversification.

Creative testing

The systematic process of testing advertising concepts, hooks, messages, formats, visuals, offers, and calls to action.

A durable testing program records what was tested, why it was tested, what audience saw it, what happened after the click, and what the team will do next.

Customer acquisition cost (CAC)

The total sales and marketing cost required to acquire one new customer.

Unlike platform CPA, CAC often includes labor, software, agency fees, creative production, sales costs, and other acquisition expenses. The exact cost categories should be defined before comparing periods.

CAC = total acquisition costs ÷ new customers

Customer match

An audience created by securely matching consented customer information with users known to an advertising platform.

Customer lists can support exclusions, retention, reactivation, measurement, and modeled audiences. Match rate depends on data quality and does not equal the number of people a campaign can reach.

Data-driven attribution

An attribution method that uses observed conversion paths and statistical modeling to distribute credit among eligible interactions.

The model may better reflect complex journeys than a fixed rule, but its output still depends on available data, platform visibility, eligibility thresholds, and assumptions that advertisers cannot always inspect.

Dayparting

Scheduling ads or adjusting bids according to the hour of day or day of week.

Dayparting can be useful for call-center coverage, fixed promotions, or proven time-based differences. Apparent patterns should be checked against time zones, conversion lag, and limited sample sizes.

Demand generation

Marketing that creates awareness, understanding, and preference before a buyer is actively searching for a solution.

Demand generation is different from capturing existing demand. Educational content, customer stories, category framing, and broad-reach advertising can make later conversion campaigns more effective.

Destination URL

The final webpage address a person reaches after clicking an advertisement.

The destination should match the ad's promise, work on all relevant devices, load quickly, retain necessary tracking parameters, and avoid redirect chains or broken paths.

Dynamic creative

A platform feature that combines supplied headlines, descriptions, images, videos, and calls to action into different ad variations.

Dynamic systems can improve delivery efficiency, but they can also make it harder to isolate why a combination worked. Inputs should still represent distinct, intentional ideas.

Engagement rate

The percentage of people, impressions, or sessions that produce a defined interaction or engaged visit.

The denominator and qualifying actions vary across platforms, so engagement rates should not be compared without confirming their definitions. Engagement is useful only when it supports the campaign's actual objective.

First-party data

Information collected directly through a business's own relationships and systems, such as customer records, email engagement, purchases, applications, and website events.

Accurate first-party data can improve measurement, audience exclusions, value-based optimization, retention analysis, and resilience as third-party identifiers become less reliable.

Frequency

The average number of times each reached person saw an ad during a selected period.

Frequency must be interpreted with audience size, buying cycle, campaign purpose, creative variety, and performance. There is no universal frequency at which every campaign becomes fatigued.

Funnel

A model of the stages people move through from first awareness to consideration, conversion, purchase, and retention.

Real customer journeys are rarely linear, but funnel stages help teams locate constraints. Strong advertising cannot permanently compensate for a weak offer, confusing page, slow follow-up, or poor sales process.

Geo-targeting

Restricting or adjusting advertising delivery according to geographic signals such as country, region, city, postal area, or radius.

Location settings may refer to presence, recent presence, or interest in a location. Advertisers should review the platform's exact option and exclude areas the business cannot serve.

Gross margin

The portion of revenue remaining after cost of goods sold, expressed as an amount or percentage.

Two campaigns with equal ROAS can have very different profit outcomes when they sell products with different margins. Margin-aware reporting supports more accurate bidding and acquisition targets.

Gross margin % = (revenue − cost of goods sold) ÷ revenue × 100

Holdout test

An experiment in which a comparable group is intentionally not exposed to a campaign or treatment.

Comparing exposed and holdout groups can estimate incremental impact more directly than attribution reports, provided the groups are large and comparable enough.

Hook

The opening idea, line, image, or moment designed to earn attention and motivate someone to continue engaging with an ad.

A strong hook creates relevant curiosity or quickly surfaces the customer's problem, desired outcome, surprise, or proof. It should lead naturally into the rest of the message.

Ideal customer profile (ICP)

A documented description of the type of customer or organization most likely to receive value, buy successfully, and remain a good fit.

An ICP informs offers, creative, qualification, targeting, and sales follow-up. It should be based on customer evidence rather than a fictional demographic sketch alone.

Impression

A recorded instance of an advertisement being served or displayed.

Impressions are not unique people. One person can generate many impressions, and platform rules determine when an impression is counted.

Incrementality

The conversions, revenue, or other outcomes caused by marketing that would not have occurred without it.

Incrementality asks a causal question: what changed because the advertising ran? It is commonly estimated through holdouts, geographic tests, conversion lift studies, or carefully designed experiments.

Keyword match type

A Google or Microsoft Ads setting that controls how closely a search query must relate to an advertiser's keyword.

Broad, phrase, and exact match provide different levels of flexibility, but all use meaning and intent signals beyond literal wording. Search-term review remains necessary.

Landing page

The page a person reaches after clicking an ad, typically designed around one audience, offer, and next action.

Message continuity, speed, mobile usability, proof, clarity, and form friction all affect whether paid traffic converts. A campaign cannot be evaluated responsibly without looking beyond the ad account.

Last-click attribution

An attribution rule that assigns all conversion credit to the final eligible click before conversion.

Last-click reporting is simple and reproducible, but it tends to undervalue interactions that introduced or educated the buyer earlier in the journey.

Lead

A person or organization that has provided information or taken an action indicating potential interest in an offer.

Lead definitions vary widely. A newsletter subscriber, webinar registrant, application, and sales-qualified opportunity represent different levels of intent and should not be valued equally.

Lead magnet

A useful resource, experience, or incentive offered in exchange for contact information.

Effective lead magnets attract people likely to need the paid offer, create a logical next step, and set up meaningful follow-up. High opt-in volume alone does not guarantee sales value.

Lead-to-customer rate

The percentage of acquired leads that eventually become paying customers.

This rate connects lead generation with sales outcomes and should be segmented by source, campaign, offer, qualification status, and cohort when possible.

Lead-to-customer rate = new customers ÷ leads × 100

Learning phase

A period in which an advertising platform is gathering data to stabilize delivery after a campaign, ad set, or major setting is created or changed.

Frequent edits, fragmented conversion volume, and small budgets can prolong instability. The label is a platform diagnostic—not a reason to ignore obviously poor economics.

Lifetime value (LTV or CLV)

The expected gross revenue or gross profit produced by a customer across the full relationship with a business.

A useful LTV calculation accounts for repeat purchases, retention, margin, refunds, time horizon, and customer segment. Revenue-based LTV should not be mistaken for profit.

Simplified LTV = average order value × purchase frequency × customer lifespan

Lookalike audience

A platform-generated audience of people who share modeled characteristics with a supplied source, such as purchasers, qualified leads, or high-value customers.

The quality, recency, size, and business relevance of the source affect usefulness. Lookalikes are hypotheses produced by the platform, not exact replicas of the seed audience.

Marginal CAC

The acquisition cost associated with the next increment of customers or spend, rather than the historical average.

Average CAC can look healthy while the newest spend is substantially less efficient. Marginal analysis helps determine whether additional budget is creating profitable growth.

Marketing efficiency ratio (MER)

A blended measure comparing total business revenue with total advertising spend.

MER is the inverse of advertising as a percentage of revenue. It is useful for executive-level trend monitoring but does not isolate causality or explain channel-level performance.

MER = total revenue ÷ total ad spend

Media buying

The planning, purchasing, management, and optimization of paid advertising inventory across channels.

Modern media buying includes auction strategy, budget allocation, measurement, creative feedback, audience signals, platform operations, and coordination with the wider funnel.

Media mix modeling (MMM)

A statistical method that estimates how marketing channels and external factors contribute to business outcomes using aggregated historical data.

MMM can assess channels that are difficult to track at the user level and support budget planning. Results depend on data quality, model design, variation in spend, and appropriate treatment of seasonality and other drivers.

Multi-touch attribution

An attribution approach that distributes conversion credit across multiple interactions in a customer journey.

Rules may be linear, time-decayed, position-based, or modeled. Multi-touch reporting provides more context than last click but cannot observe every touchpoint or establish causality by itself.

Negative keyword

A term used to prevent a search advertising campaign from showing for irrelevant or unwanted queries.

Negative keywords protect budget and traffic quality, but overly broad exclusions can block valuable demand. Match behavior and shared-list scope should be reviewed carefully.

Offer

The complete proposition presented to a buyer, including the product or service, promised outcome, price, terms, positioning, proof, bonuses, guarantee, urgency, and buying mechanism.

Advertising amplifies an offer; it does not create durable demand for an unclear or weak one. Offer changes can affect performance more than targeting changes.

Offline conversion

A conversion completed outside the website session, such as a closed sales opportunity, phone sale, in-person purchase, or qualified CRM stage.

Sending offline outcomes back to ad platforms can help optimization move beyond form submissions toward real business value, assuming identity matching and consent are handled correctly.

Optimization event

The specific event an ad platform is instructed to maximize, such as landing-page views, leads, purchases, qualified opportunities, or purchase value.

Platforms find more of what they are asked to find. Moving the event closer to revenue can improve quality, but only if enough accurate events are available for the system to learn.

Paid acquisition

The use of paid media to acquire customers, leads, users, or revenue through a measurable system.

Paid acquisition includes far more than launching ads. It connects channel strategy, creative, offers, landing pages, tracking, attribution, testing, forecasting, reporting, and the decisions that keep growth moving.

Payback period

The time required for the gross profit or contribution generated by a customer to recover the cost of acquiring that customer.

A business may tolerate a higher CAC when cash is recovered quickly or retention is predictable. Long payback periods increase cash-flow and forecasting risk.

Pixel

Browser-based tracking code that records website activity and sends selected events to an advertising or analytics platform.

Pixels support measurement, audience building, and optimization, but browser restrictions, consent choices, ad blockers, and implementation errors can make their data incomplete.

Placement

The location or format where an ad appears, such as an Instagram Reel, Facebook Feed, Google Search result, YouTube video, display site, or partner network.

Placement performance depends on user context and creative fit. Automated placement can find efficient inventory, but breakdowns should be reviewed for quality, brand suitability, and measurement differences.

Post-click conversion

A conversion credited after a person clicked an advertisement within the applicable attribution window.

Post-click conversions generally indicate stronger observable intent than view-through conversions, but the click still may not have caused the outcome.

Primary conversion

A conversion action designated as a main optimization and reporting goal within an advertising or analytics platform.

Only outcomes that represent meaningful business progress should be primary. Counting page views or duplicate funnel steps as primary can distort bidding and totals.

Product feed

A structured data source containing product details such as title, price, availability, image, category, and destination URL for use in commerce advertising.

Feed accuracy affects eligibility, matching, creative presentation, and shopping performance. Titles, identifiers, categorization, pricing, and disapprovals require ongoing maintenance.

Prospecting

Advertising intended to reach potential customers who are not already known, converted, or actively included in a retargeting audience.

Prospecting creates new demand and captures undiscovered intent. Exclusions and definitions should be documented because platforms increasingly expand beyond manually selected audiences.

Qualified traffic

Website visits from people who plausibly fit the offer and have relevant intent, need, authority, or purchasing ability.

Traffic quality is assessed through downstream behavior such as engaged sessions, applications, qualified leads, purchases, revenue, and retention—not clicks alone.

Quality lead

A lead that meets the business's meaningful criteria for fit, intent, ability to buy, or likelihood to become a customer.

Quality should be defined through downstream behavior—not intuition alone. CRM stages, booked calls, attendance, close rate, revenue, and retention can all help distinguish valuable leads.

Reach

The estimated number of unique people or accounts that saw an advertisement at least once.

Reach is different from impressions. It is most useful alongside frequency, audience size, geography, and the campaign's role in the funnel.

Retargeting

Advertising directed toward people who previously interacted with a website, content, account, form, product, email list, or other owned touchpoint.

Retargeting can help buyers continue a journey, but it often receives too much attribution credit because it focuses on people who were already more likely to convert.

Return on ad spend (ROAS)

Revenue attributed to advertising divided by advertising spend.

ROAS does not account for margin, agency fees, creative costs, refunds, fulfillment, or other operating expenses. Platform ROAS is also shaped by attribution rules and should be reconciled with business data.

ROAS = attributed revenue ÷ ad spend

Return on investment (ROI)

Profit generated by an investment relative to the total cost of that investment.

ROI is broader than ROAS because it considers costs beyond media spend. Teams should specify whether they are using gross profit, contribution margin, or net profit.

ROI = (return − total investment cost) ÷ total investment cost × 100

Scaling

Increasing the volume of profitable acquisition while protecting acceptable efficiency, customer quality, and operational capacity.

Scaling is not simply raising budgets. It may require more creative, broader audiences, stronger conversion rates, better follow-up, higher customer value, additional channels, and tolerance for changing marginal costs.

Search impression share

The percentage of eligible Google Ads search impressions an advertiser received.

Lost impression share due to budget indicates spend constraints; loss due to rank reflects Ad Rank. Impression share describes visibility within eligible auctions, not total market demand.

Search impression share = received impressions ÷ estimated eligible impressions × 100

Search query

The words or phrase a person actually enters into a search engine before seeing or clicking an ad.

A query is not the same as the keyword selected by an advertiser. Search-term analysis reveals intent, irrelevant traffic, new keyword opportunities, and changes in platform matching.

Seasonality

Predictable changes in demand, competition, conversion behavior, or customer value associated with time periods or recurring events.

Seasonality may occur around holidays, launches, school calendars, weather, pay cycles, or industry buying periods. Forecasts and tests should compare appropriate periods.

Server-side tracking

The collection and transmission of events through a server or controlled data layer rather than relying exclusively on a visitor's browser.

Server-side tracking can improve reliability, governance, and control, but it does not remove consent obligations or automatically make attribution accurate.

Share of voice

A measure of a brand's advertising presence relative to the total presence of relevant competitors or the category.

It may be calculated from impressions, spend, mentions, or other visibility data. Share of voice indicates relative presence, not whether the advertising is persuasive or profitable.

Signal quality

The accuracy, completeness, timeliness, and business relevance of the data supplied to an advertising platform for measurement and optimization.

Strong signals use consistent event definitions, deduplication, reliable identifiers, value data, and downstream outcomes. More events are not always better when the events do not represent value.

Speed to lead

The elapsed time between a prospect submitting an inquiry and receiving a meaningful sales response.

Fast, relevant follow-up often improves contact and qualification rates. Paid media performance can appear weak when lead handling is slow, inconsistent, or disconnected from campaign reporting.

Statistical significance

A measure of whether an observed experimental difference would be unlikely under a specified assumption of no real difference.

Significance does not indicate business importance or guarantee the result will repeat. Test design, sample size, stopping rules, confidence intervals, and practical effect size all matter.

Target CPA

An automated bidding strategy that attempts to generate conversions at an average acquisition cost near a specified target.

A target that is disconnected from recent performance or available auction volume can restrict delivery. The target should reflect actual economics and enough conversion history.

Target ROAS

An automated bidding strategy that attempts to maximize conversion value while maintaining an average return on ad spend near a specified target.

Target ROAS depends on accurate conversion values and sufficient volume. Very aggressive targets may protect reported efficiency by reducing reach and total revenue.

Top-of-funnel (TOFU)

Marketing activity designed primarily to reach and educate people before they are ready for a direct purchase or sales conversation.

Top-of-funnel campaigns often require wider measurement than immediate ROAS, including qualified reach, attention, brand lift, engaged visits, assisted conversions, and later cohort outcomes.

Tracking parameter

Information appended to a URL so analytics systems can identify traffic source, campaign, creative, or other context.

UTM parameters are the most common example. A documented naming convention prevents fragmented reporting and makes cross-platform analysis more reliable.

UTM parameter

A standardized query-string tag used by analytics tools to describe a visit's source, medium, campaign, term, or content.

Consistent UTM naming makes cross-channel reporting easier. Values are case-sensitive in many tools, visible in the URL, and should never contain private customer information.

Value-based bidding

Optimization that uses the relative business value of conversions rather than treating every conversion as equal.

Values may represent revenue, margin, predicted quality, lead stage, or lifetime value. The values must be consistently defined and sent quickly enough to influence delivery.

Video completion rate

The percentage of video starts or impressions that reach a specified completion point, often 100 percent.

Completion rate depends heavily on video length, placement, autoplay behavior, audience, and platform counting rules. Pair it with watch time and downstream action.

View-through conversion

A conversion credited after a person saw an ad but did not click it within the applicable attribution window.

View-through reporting can capture real influence, especially for visual and video media, but it can also overstate causality. Use incrementality testing and blended results as checks.

Webinar funnel

A customer-acquisition path that moves people from an ad or invitation to registration, attendance or replay, an offer, and a purchase or sales conversation.

Performance depends on registration cost, show-up rate, watch behavior, offer transition, follow-up, conversion rate, and customer value—not registration volume alone.

Win rate

The percentage of qualified sales opportunities or proposals that become customers.

Win rate connects acquisition with sales effectiveness. Changes in source mix, qualification standards, pricing, sales capacity, and follow-up can all affect it.

Win rate = won opportunities ÷ closed opportunities × 100

Zero-party data

Information a customer intentionally and proactively provides, such as preferences, goals, interests, or purchase intentions.

Quizzes, onboarding questions, preference centers, and forms can collect zero-party data. It can improve personalization and qualification when the purpose is clear and the data is used responsibly.