During decline, demand for a good begins to taper off, and the firm may opt to discontinue the manufacture of the product. This is so, if revenue for the product comes from efficiency savings in production, over actual sales of a good/service. However, if a product services a niche market, or is complementary to another product, it may continue the manufacture of the product, despite a low level of sales/revenue being accrued. 
This type of marketing strategy is used to gain resurgence in the audience in a short span of time by hacking into one of the internet marketing strategies. There are many professionals who can do this job for you in return for money. One method is to try several marketing strategies simultaneously. You can get a huge amount of data by following this technique.
Data-driven advertising: Users generate a lot of data in every step they take on the path of customer journey and brands can now use that data to activate their known audience with data-driven programmatic media buying. Without exposing customers' privacy, users' data can be collected from digital channels (e.g.: when customer visits a website, reads an e-mail, or launches and interact with brand's mobile app), brands can also collect data from real world customer interactions, such as brick and mortar stores visits and from CRM and sales engines datasets. Also known as people-based marketing or addressable media, data-driven advertising is empowering brands to find their loyal customers in their audience and deliver in real time a much more personal communication, highly relevant to each customers' moment and actions.
Understanding Mobiles: Understanding mobile devices is a significant aspect of digital marketing because smartphones and tablets are now responsible for 64% of the time US consumers are online (Whiteside, 2016). Apps provide a big opportunity as well as challenge for the marketers because firstly the app needs to be downloaded and secondly the person needs to actually use it. This may be difficult as ‘half the time spent on smartphone apps occurs on the individuals single most used app, and almost 85% of their time on the top four rated apps’ (Whiteside, 2016). Mobile advertising can assist in achieving a variety of commercial objectives and it is effective due to taking over the entire screen, and voice or status is likely to be considered highly; although the message must not be seen or thought of as intrusive (Whiteside, 2016). Disadvantages of digital media used on mobile devices also include limited creative capabilities, and reach. Although there are many positive aspects including the users entitlement to select product information, digital media creating a flexible message platform and there is potential for direct selling (Belch & Belch, 2012).
Marketing is not confined to any particular type of economy, because goods must be exchanged and therefore marketed in all economies and societies except perhaps in the most primitive. Furthermore, marketing is not a function that is limited to profit-oriented business; even such institutions as hospitals, schools, and museums engage in some forms of marketing. Within the broad scope of marketing, merchandising is concerned more specifically with promoting the sale of goods and services to consumers (i.e., retailing) and hence is more characteristic of free-market economies.
Marketing is the process of teaching consumers why they should choose your product or service over those of your competitors, and is a form of persuasive communication. It is made up of every process involved in moving a product or service from your business to the consumer. Marketing includes creating the product or service concept, identifying who is likely to purchase it, promoting it, and moving it through the appropriate selling channels. There are three primary purposes of marketing: What Is Digital Marketing?
Market nicher: The market nicher occupies a small niche in the market in order to avoid head to head competition. Their objective is to build strong ties with the customer base and develop strong loyalty with existing customers. Their market posture is generally neutral. Their strategy is to develop and build the segment and protect it from erosion. Tactically, nichers are likely to improve the product or service offering, leverage cross-selling opportunities, offer value for money and build relationships through superior after sales service, service quality and other related value adding activities.
Advertising, or promotion, is only one component of your marketing plan. The marketing process begins with the idea for your product and continues until that product is in the hands of a consumer who bought it. Even after a customer has made a purchase, your marketing shouldn't end—a portion of your advertising should be targeted at current customers to ensure they remain customers and increase loyalty.
Affiliate marketing is one of the oldest forms of marketing, and the Internet has brought new life to this old standby. With affiliate marketing, influencers promote other people’s products and get a commission every time a sale is made or a lead is introduced. Many well-known companies like Amazon have affiliate programs that pay out millions of dollars per month to websites that sell their products.
The process of marketing is that of bringing a product to market, which includes these steps: broad market research; market targeting and market segmentation; determining distribution, pricing and promotion strategies; developing a communications strategy; budgeting; and visioning long-term market development goals. Many parts of the marketing process (e.g. product design, art director, brand management, advertising, inbound marketing, copywriting etc.) involve use of the creative arts.
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".
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.  5 Digital Marketing Skills to Master for 2020 & Beyond