YouTube Video reach campaigns: subtypes, Target CPM and frequency

YouTube Video reach campaigns are the Google Ads campaign subtype built to show a video ad to as many different people as possible for a given budget, or to the same people a set number of times. They bid on Target CPM, so you pay per thousand impressions instead of per view or per click. You choose one of three options at setup: efficient reach, non-skippable reach or target frequency.

The subtype is a brand-awareness tool. It does not try to find people who will click or convert, and judging it on clicks produces the wrong conclusion every time. The sections below cover what each option does, how the bid and the frequency controls work, what to measure, and how budget and flight length shape the result.

What a Video reach campaign is and its three subtypes

In Google Ads, a Video reach campaign sits under the video campaign objective for reach, views and engagements. The system optimises delivery towards unique users inside the targeting and budget you set. The option you choose decides which ad formats can run.

Efficient reach

Efficient reach aims for the largest number of unique users at the lowest cost. It can combine bumper ads, skippable in-stream ads, in-feed ads and Shorts ads in one campaign. In-feed and Shorts come in through multi-format ads, which need a long headline and a description of up to 90 characters each. Google's setup guidance recommends using the full format mix because it maximises the unique reach the campaign can get.

Non-skippable reach

Non-skippable reach delivers the whole message with no skip button. Google Ads Help lists three asset lengths for it: bumper ads of up to 6 seconds, standard non-skippable ads of 7 to 15 seconds, and 30-second non-skippable ads for connected TV, which accept videos of 16 to 30 seconds. The connected TV assets must be horizontal. A square or vertical video cannot run in that slot. One campaign can mix the three lengths.

Target frequency

Target frequency changes the goal from "more people" to "the same people, more often". You enter how many times a viewer should see the ads per week or per month and the system optimises towards it. The supported ranges are 2 to 7 per week and 4 to 12 per month. It can use skippable in-stream, bumper, in-feed and Shorts ads, plus non-skippable in-stream ads of up to 20 seconds.

This option has more restrictions than the other two, and they are worth knowing before a media plan is signed off:

• It runs on YouTube only and does not work with Google video partners.
• It supports one ad group per campaign.
• Content targeting such as topics, keywords and placements is not supported.
• An existing campaign cannot be converted into a target frequency campaign. It has to be created as one.
• Google advises against shared budgets and recommends adding at least as many creatives as the frequency number, so a viewer targeted 4 times a week is not shown one video 4 times.

Video reach vs Video views vs Demand Gen

The three YouTube buying routes share some ad formats, which is why they get confused. They differ in what the system is trying to maximise and in what you are billed for.

A skippable in-stream ad can run in all three. In a Video views campaign it is billed when someone watches 30 seconds, or all of a shorter ad, or interacts. In a Video reach campaign the same ad is billed on the impression, even if the viewer skips at second 5. The reach campaign is doing its job when many different people see the opening, and a low view rate is the expected side effect.

The choice comes down to the question the business needs answered. Use Video reach when the question is how many people in the target audience were exposed and how often. Use Video views when it is how many people chose to watch. Use Demand Gen when it is how many leads or sales came out of the spend, which is the same logic that governs the rest of a Google Ads account.

Target CPM bidding and frequency caps

A Target CPM bid is the average amount you are willing to pay for a thousand impressions. The campaign then tries to reach as many unique users as it can around that average. Individual impressions can cost more or less than the target.

The bid has a floor effect that catches people out. If it is set too low, the ads can stop serving in some or all of the selected formats, and the campaign under-delivers. The setup screen shows an estimate next to the bid for this reason, and Google's guidance for target frequency is to follow that built-in bid guidance.

Eligible accounts may also see an automated bid for Video reach campaigns, which is in beta. No bid is entered and Google Ads sets bids in each auction to spend the full budget. It covers all three options and works with daily budgets and with campaign total budgets. Google recommends allowing 24 hours for bidding to settle before making significant changes to audience or budget.

Frequency caps are a different control from target frequency

A frequency cap is a limit. Under the campaign's additional settings you can cap impressions or views per user per day, per week or per month, and the system stops showing the ad to someone who has hit the cap. Target frequency is a goal. The system works to bring viewers up to the number, and Google states plainly that it is not a cap, so some users may see the ad more often than the target in a given week.

They deal with opposite problems. A cap protects against annoying the same viewers. A frequency target protects against spreading the budget so thin that most people see the ad once and forget it.

When several YouTube campaigns run together, a video campaign group can coordinate them towards one shared reach or frequency goal. Efficient reach and non-skippable reach campaigns are the ones the group can optimise. A target frequency campaign placed in a group keeps optimising for its own number, and Google advises against tight campaign-level caps inside a group because they restrict delivery.

Measuring unique reach and Brand Lift

Reach campaigns are judged on reach and frequency columns, which you add to the campaign table under the reach and frequency metrics.

• Unique users is the number of people who were shown the ad. It counts people, not cookies or devices. Google estimates it with statistical models that deduplicate across sessions, formats, networks and devices.
• Average impression frequency per user is impressions divided by unique users. It comes in 7-day and 30-day versions. For a target frequency campaign, the 7-day version and the frequency distribution are the metrics Google recommends.
• Co-viewing is included for connected TV. When several people watch a TV screen together, the reach models count the co-viewers.

Some limits apply. Most reach and frequency metrics are available only for date ranges of 92 days or less, and the frequency distribution needs a range of 31 days or less. Reach and frequency data can be delayed by up to 72 hours, so the first few days of a flight will look incomplete. Very small campaigns may show no reach data at all because a minimum volume is needed before the metrics populate.

The frequency distribution deserves more attention than the average. An average of 3 can hide a campaign where a large group saw the ad once and a small group saw it 10 times. The distribution shows how many people sit at each exposure level, which is the number a frequency plan is trying to control.

Brand Lift

Brand Lift measures whether the ads changed what people think, using survey questions shown on YouTube before a video starts. Google compares the answers from people who saw the ads with the answers from people who were eligible to see them but were not shown them. It reports on ad recall, brand awareness, consideration and brand association.

Brand Lift is not available in every Google Ads account. It is arranged through a Google account representative, and a study has a minimum spend requirement that Google sets. Confirm eligibility and the current threshold for your market before building a plan around a lift study, because a campaign that falls short will not return a result.

Budgets and flight length: why there is no fixed minimum

Google Ads Help does not publish a minimum budget for a Video reach campaign, and there is no reliable universal figure for Thailand either. What exists is arithmetic. Budget, CPM, frequency and reach are tied together, so setting any three decides the fourth.

An illustrative example with invented numbers shows the relationship. Suppose a campaign has 100,000 baht and delivers at an average CPM of 50 baht. That buys 2,000,000 impressions. At an average frequency of 4, those impressions reach about 500,000 people. At a frequency of 2 they reach about 1,000,000. The CPM here is made up for the arithmetic and is not a benchmark. Your actual CPM depends on audience, formats, season and competition in the auction.

The example makes three planning points:

• Audience size sets the ceiling. A budget that is large relative to a narrow audience cannot buy more reach. It buys more frequency and pushes the average CPM up. Google recommends keeping budget proportional to audience size and advises against narrow audience and content targeting on reach campaigns.
• Frequency targets need time. A weekly target only means something across full weeks. For target frequency Google's guidance is to run for at least 7 days and says 2 to 4 weeks works best.
• Short flights leave little room to adjust. Automated bidding needs about a day to settle after launch and reach reporting lags by up to 72 hours. A flight of a few days ends before the first reliable reading arrives.

A sensible way to size a campaign is to work backwards. Start from the number of people the brand needs to reach and how often, use the campaign estimates in Google Ads to see the expected CPM for that audience, and let the budget fall out of the calculation. If the result is more than the brand can spend, narrow the goal honestly: a smaller region, a shorter list of provinces or a lower frequency. Underfunding the original plan only hides the gap.

When reach campaigns make sense for Thai brands

Reach campaigns suit moments when a brand needs many people in Thailand to know something by a date: a product launch, a new branch, a seasonal promotion, a rebrand. They also suit categories that most households buy, where the audience is broad enough for unique reach to be the right goal. Awareness work of this kind is usually one part of a wider digital branding plan.

They are a weaker fit for a business with a small, specific audience, such as a B2B supplier or a clinic serving one district. The audience ceiling arrives quickly and extra budget turns into repetition. A Video views or Demand Gen campaign usually answers that brief better.

Creative and inventory need local decisions. A Thai-language cut and an English cut are separate assets aimed at separate audiences. If the plan includes connected TV, the 30-second non-skippable format needs a horizontal video, while Shorts placements work best with a vertical one. Google Ads can generate vertical versions of a horizontal video through its video enhancements setting, which is on by default for new campaigns. Check those versions before launch if on-screen Thai text sits near the edge of the frame.

YouTube reach also does not cover every Thai viewer. Relevant Audience's Thai Video Network places video ads on Thai publisher sites, which can be added to a YouTube plan to extend reach beyond one platform.

Frequently asked questions

What is the difference between efficient reach and target frequency?

Efficient reach tries to show the ad to as many different people as possible, while target frequency tries to show it to the same people a set number of times per week or month. Target frequency accepts 2 to 7 per week or 4 to 12 per month, runs on YouTube only and allows one ad group per campaign.

Is there a minimum budget for a Video reach campaign?

Google Ads Help does not state a fixed minimum budget for the campaign itself. The practical minimum comes from the audience size, the CPM for that audience and the frequency you want. Brand Lift studies are different: they do carry a minimum spend requirement, which your Google representative can confirm.

Is target frequency the same as a frequency cap?

No, target frequency is a goal and a frequency cap is a limit. A cap stops the ad from being shown to a user beyond a set number of impressions or views per day, week or month. A target asks the system to bring viewers up to a number, and some viewers may see the ad more often than that.

How long should a Video reach campaign run?

Long enough for the frequency goal to be measured across full weeks. Google recommends at least 7 days for target frequency and says 2 to 4 weeks works best. Reach and frequency reports can also lag by up to 72 hours, so very short flights are hard to read while they are live.

Can Video reach campaigns be measured by conversions?

They can record conversions, but that is not what they optimise for. The campaign bids for impressions and unique users, so the fair measures are unique users, average frequency, the frequency distribution and Brand Lift where it is available.

Most of what decides a reach campaign is fixed before launch: the option chosen, a bid that can serve, enough creatives and a flight long enough to measure. Relevant Audience's YouTube ads service covers that setup along with Thai and English creative and ongoing optimisation.