What a media buying agency does: eight stages of ad procurement

The answer to "what does a media buying agency do" includes forecasting, media planning, negotiations, booking, paperwork, placement, optimization, and results reconciliation.

In 2025, through the VK AdBlogger platform alone, advertisers placed over a million publications, with 70% placements in communities with audiences of 100 thousand subscribers or more. The growth in integrations within niche communities—history, automotive, sports—in the second half of the year was one and a half times higher compared to the first half. These figures confirm market demand: businesses are not looking for reach for reach's sake, but for measurable returns delivered through targeted platform selection and methodical KPI management at every stage of the campaign.

What does a media buying agency do?

The first stage is building a forecast model. The agency collects public data about platforms: topic, geography and age composition of the audience, average post reach, history of advertising integrations. It then overlays the brand's objectives onto this map—for example, to attract 5 000 new e-commerce customers with a CAC no higher than 800 rubles. The model shows how many impressions are needed to achieve the goal, what share will be qualified visits, and at which stage of the funnel the main drop-off is expected.

A media plan specifies the list of platforms, creative format, publication dates, and budget for each placement. The plan is built not from the top down (we have a million rubles — let's split it equally), but from the objective: if achieving conversions requires multiple touchpoints with the same audience, the media plan includes several platforms with overlapping audiences and staggered publication dates. This approach requires access to analytics—Yandex.Metrica or similar systems that track goal visits and calculate conversion as the ratio of goal visits to total visits.

Negotiations and booking: locking in terms before launch

During negotiations, the agency agrees with platforms on placement costs, integration format (native post, story, video review), publication dates, and edit rights. Negotiations include reviewing the creator's media kit: actual reach, engagement dynamics, and signs of artificial growth. A platform whose ER (engagement rate) drops sharply after previous sponsored posts is excluded from the plan—this signals that the audience doesn't trust commercial content.

Booking locks in the publication date and time. For a synchronized campaign—such as a new product launch—timing is critical: if one blogger publishes a week late, the cross-promotion effect is lost. The agency makes a prepayment or signs a guarantee letter to secure the slot and protect the brand from a situation where the platform sells the spot to a competitor at the last moment.

Documents and Ad Labeling: Legal Compliance in Media Buying

The fourth and fifth stages involve contract execution and ensuring legal compliance. The agency prepares an agreement with the performer (blogger or community administrator), a work completion report, and an invoice. The documents specify the scope of services, timelines, acceptance procedures, and liability of both parties.

Ad labeling is a mandatory requirement under Russian law: every post must contain an "advertisement" mark and a token from the Ord system, otherwise the brand faces a fine of up to 500,000 ₽.

Platforms like VK AdBlogger automate ad labeling and document management, but when working directly with bloggers, the agency independently registers the campaign in Ord, obtains a token, and monitors its placement in the post. Mistakes at this stage are a common reason for regulator complaints, so checking ad labeling is part of the checklist before publication.

Posting, Optimization, and Verification: Real-Time Campaign Management

Posting is the moment the content goes live. The agency verifies creative accuracy (copy, links, visuals), presence of UTM tags for traffic tracking and ad labeling. Immediately after publication, monitoring begins: how many impressions the post received in the first hour, what's the click-through rate, are there negative comments requiring moderation.

Optimization is triggered when actual metrics deviate from the forecast. If CTR (click-through rate) falls short of expectations, the agency recommends refining the call-to-action text or adding a promo code. If landing page conversion dips — it suggests improving the landing page or adjusting the offer. Tools like Yandex Metrica are configured with conversion goals: page visits, button clicks, form submissions. The system tracks goal completion and calculates visitor conversion — the share of users who completed the target action among all unique visitors.

Results verification is the final stage. The agency compares planned versus actual metrics: reach, click volume, cost per action, revenue (if goal revenue data is provided). The report shows which channels delivered the strongest returns and which fell short of expectations. This data forms the foundation of the next media plan — media buying transforms from a one-time campaign into a managed cycle.

How to structure the media buying process: marketer's checklist

• Define the target action and its cost. Specify what counts as a conversion (purchase, lead, signup), and calculate acceptable CAC based on product margin.
• Build a list of channels with proven audience quality. Request media kits, review reach and engagement trends over the past three months, exclude channels showing sudden subscriber spikes.
• Create a forecast model. Calculate how many impressions are needed to achieve the goal, factoring in average CTR for your niche and landing page conversion rate.
• Reserve slots and finalize agreements. Lock in dates, submit prepayment, specify acceptance terms and liability for missed deadlines.
• Configure conversion tracking before launch. In Yandex Metrica or similar platform, set up goals for key actions and add UTM parameters to all post links.
• Verify ad labeling before publication. Ensure the post includes "ad" marking and the appropriate token; save a screenshot for reporting.
• Monitor metrics in the first day. If CTR or conversion underperforms, adjust creative or offer before the active campaign phase ends.
• Prepare a summary report and update the media plan. Compare planned versus actual KPIs, identify top-performing channels, and repeat purchases on them in the next cycle.

Limitations of Public Data and Analysis Methodology

VK AdBlogger data covers only a single platform and does not include direct deals between brands and bloggers outside the marketplace. The statistics are current for 2025 and reflect the behavior of 46,000 registered advertisers — primarily small and medium-sized businesses for which automated document management and ad labeling are critical. Large brands more often work through agencies and may not appear in the platform's public sample.

The one-and-a-half-fold increase in demand for niche communities in the second half of 2025 represents a comparison within a single platform, not an industry-wide trend. Nevertheless, the direction aligns with e-commerce demand (40% of all integrations) for high conversion: niche audiences generate better engagement than broad entertainment pages, despite smaller absolute reach.

Frequently Asked Questions

How does media buying differ from placing ads independently?

A media buying agency manages the entire chain — from forecasting and negotiations to legal documentation and optimization against metrics. Independent placement typically comes down to choosing a platform and submitting creative, without systematic analytics or alignment with business objectives.

How does an agency verify the quality of a blogger's audience?

An agency requests reach and engagement statistics for the past several months, analyzes subscriber dynamics (sharp spikes indicate fake followers), and compares metrics against industry benchmarks. Additionally, comments are reviewed: genuine discussion and subscriber questions indicate a real audience.

Is Yandex Metrica mandatory for measuring campaign results?

Yandex Metrica is one tool, but not the only option. You can use Google Analytics, Roistat, or internal CRM analytics—what matters is setting up goals and UTM tags to track the user journey from a post click to the target action and calculate conversion.