Media submission is the purchase of access to attention before attention becomes a choice.
Advertising is often described as a message. The more important fact is that it is a delivery arrangement. A brand pays for access to a channel, a platform selects a location and moment, and a person encounters the message inside an activity they began for another reason.
Media planning chooses the channels, timing, audience, and frequency. Media buying purchases the placement itself. Together they turn attention into inventory. The creative may be persuasive, but the first act of influence happened earlier: someone else decided where the message would appear and paid to make its arrival more likely.
That is why media submission is a useful name for the receiver’s position. The person has not yet considered the product, formed a need, or compared alternatives. They have simply entered an environment whose access has been sold. The placement creates awareness before conscious consideration begins.
Source: Amazon Ads, “What is Media Strategy?”; Hortaçsu, Madanizadeh, and Puller, “Advertising, Consumer Awareness and Choice: Evidence from the U.S. Banking Industry,” FTC working paper presentation.