This refers to how the product gets to the customer; the distribution channels and intermediaries such as wholesalers and retailers who enable customers to access products or services in a convenient manner. This third P has also sometimes been called Place or Placement, referring to the channel by which a product or service is sold (e.g. online vs. retail), which geographic region or industry, to which segment (young adults, families, business people), etc. also referring to how the environment in which the product is sold in can affect sales. 
Marketing is defined by the American Marketing Association as "the activity, set of institutions, and processes for creating, communicating, delivering, and exchanging offerings that have value for customers, clients, partners, and society at large". The term developed from the original meaning which referred literally to going to market with goods for sale. From a sales process engineering perspective, marketing is "a set of processes that are interconnected and interdependent with other functions of a business aimed at achieving customer interest and satisfaction". How to Start a Social Media Marketing Agency (SMMA) 2020 - Digital Marketing Tutorial for Beginners
This type of marketing strategy makes the use of your existing customers to get new customers on board. You pay some incentive or benefits to your customers if they ask their friends to buy your product or service. People usually do word-of-mouth marketing to get the benefit. The amount you pay to them is quite small in front of the returns you are getting. Find the way to keep the track of referrals done by your customers before giving them benefits.
Some studies indicate that consumer responses to traditional marketing approaches are becoming less predictable for businesses. According to a 2018 study, nearly 90% of online consumers in the United States researched products and brands online before visiting the store or making a purchase. The Global Web Index estimated that in 2018, a little more than 50% of consumers researched products on social media. Businesses often rely on individuals portraying their products in a positive light on social media, and may adapt their marketing strategy to target people with large social media followings in order to generate such comments. In this manner, businesses can use consumers to advertise their products or services, decreasing the cost for the company.
The area of marketing planning involves forging a plan for a firm's marketing activities. A marketing plan can also pertain to a specific product, as well as to an organization's overall marketing strategy. An organization's marketing planning process is derived from its overall business strategy. Thus, when top management are devising the firm's strategic direction/mission, the intended marketing activities are incorporated into this plan.
Digital marketing is defined by the use of numerous digital tactics and channels to connect with customers where they spend much of their time: online. From the website itself to a business's online branding assets -- digital advertising, email marketing, online brochures, and beyond -- there's a spectrum of tactics that fall under the umbrella of "digital marketing."
In-game advertising - In-Game advertising is defined as "inclusion of products or brands within a digital game." The game allows brands or products to place ads within their game, either in a subtle manner or in the form of an advertisement banner. There are many factors that exist in whether brands are successful in their advertising of their brand/product, these being: Type of game, technical platform, 3-D and 4-D technology, game genre, congruity of brand and game, prominence of advertising within the game. Individual factors consist of attitudes towards placement advertisements, game involvement, product involvement, flow or entertainment. The attitude towards the advertising also takes into account not only the message shown but also the attitude towards the game. Dependent of how enjoyable the game is will determine how the brand is perceived, meaning if the game isn't very enjoyable the consumer may subconsciously have a negative attitude towards the brand/product being advertised. In terms of Integrated Marketing Communication "integration of advertising in digital games into the general advertising, communication, and marketing strategy of the firm" is an important as it results in a more clarity about the brand/product and creates a larger overall effect. Digital Marketing for Beginners: 7 Strategies That Work