In reality, most of the core metrics are quite logical. Once you understand the basics, a media plan becomes much easier to read and evaluate.

Here are the key media planning terms that help marketers better understand campaign performance and budget efficiency.

Reach, TRP and GRP

One of the most important metrics in media planning is reach. Reach shows how many unique people saw your advertising message at least once.

If someone sees the same advertisement multiple times, they are still counted only once in reach. That is why reach is used to understand how many different people your campaign actually reached.

Another common metric is TRP (Target Rating Points). It measures how many views the campaign generated within your target audience.

GRP (Gross Rating Points) is similar, but calculated for the entire audience of a channel rather than a specific target group. In practice, GRP is simply the sum of ratings from all campaign placements.

Frequency and OTS

Frequency describes how often the average person sees your advertisement. If reach tells you how many people were exposed to the campaign, frequency tells you how intense that exposure was.

Media planners often calculate frequency using the ratio between GRP and reach.

Another related metric is OTS (Opportunity To See). It represents the total number of potential contacts with an advertisement, including repeated views by the same person.

Affinity and CPP

Affinity measures how well a media channel matches your target audience. If a program attracts more viewers from your target group than from the general audience, its affinity index will be above 100%.

This is a useful indicator when selecting advertising platforms, because it shows which channels concentrate the audience you actually want to reach.

Another practical metric is CPP (Cost Per Point). It shows how much it costs to achieve one rating point. Marketers often use this metric to compare different advertising channels and identify more efficient placements.

Media Plan and Media Planning

A media plan is the document that outlines when and where advertising will appear. It usually includes dates, channels, number of placements, and the expected campaign results.

Media planning itself is the broader process of allocating advertising budgets across channels and forecasting campaign performance.

It typically includes both strategic planning, where goals and budgets are defined, and tactical planning, where specific placements and schedules are created.

Roles and Campaign Documents

Several specialists usually work on media campaigns. A media planner develops the strategy and calculates expected performance metrics.

On the media side, traffic managers handle the scheduling of advertising inventory and make sure that commercials appear in the correct time slots.

Campaigns also generate several important documents, including pre-campaign forecasts, detailed placement schedules, and post-campaign reports analyzing the final results.

Flights, Seasonality and Media Split

Advertising campaigns are often divided into periods called flights. A campaign may run for several weeks, pause, and then resume later to maintain audience interest while managing the budget.

Pricing for advertising inventory also changes depending on the season. Demand is usually lower at the beginning of the year and much higher during peak marketing periods like December.

Finally, media planners often create a media split, which distributes budget or GRP across channels, time periods, or audience segments.