To overcome the deficiencies of the 4P model, some authors have suggested extensions or modifications to the original model. Extensions of the four P's are often included in cases such as services marketing where unique characteristics (i.e. intangibility, perishability, heterogeneity and the inseparability of production and consumption) warrant additional consideration factors. Other extensions have been found necessary for retail marketing, industrial marketing, and internet marketing
Those engaging with your company online via mobile devices need to have the same positive experience as they would on desktop. This means implementing a mobile-friendly or responsive website design to make browsing user-friendly for those on mobile devices. It might also mean reducing the length of your lead generation forms to create a hassle-free experience for people downloading your content on-the-go. As for your social media images, it's important to always have a mobile user in mind when creating them as image dimensions are smaller on mobile devices, meaning text can be cut-off.
One way marketers can reach out to consumers, and understand their thought process is through what is called an empathy map. An empathy map is a four step process. The first step is through asking questions that the consumer would be thinking in their demographic. The second step is to describe the feelings that the consumer may be having. The third step is to think about what the consumer would say in their situation. The final step is to imagine what the consumer will try to do based on the other three steps. This map is so marketing teams can put themselves in their target demographics shoes. Web Analytics are also a very important way to understand consumers. They show the habits that people have online for each website. One particular form of these analytics is predictive analytics which helps marketers figure out what route consumers are on. This uses the information gathered from other analytics, and then creates different predictions of what people will do so that companies can strategize on what to do next, according to the peoples trends.
A disadvantage of using the horizontal integration strategy is that this limits and restricts the field of interest that the business. Horizontal integration can affect a business's reputation, especially after a merge has happened between two or more businesses. There are three main benefits to a business's reputation after a merge. A larger business helps the reputation and increases the severity of the punishment. As well as the merge of information after a merge has happened, this increases the knowledge of the business and marketing area they are focused on. The last benefit is more opportunities for deviation to occur in merged businesses rather than independent businesses.
Taking these statistics into consideration, online marketing is a critical element of a complete marketing strategy. It is vital for marketers to use online tools such as social media and digital advertising, both on website and mobile device applications, and internet forums. Considering an appropriate distribution channel for products purchased online is also an important step.
Marketing’s principal function is to promote and facilitate exchange. Through marketing, individuals and groups obtain what they need and want by exchanging products and services with other parties. Such a process can occur only when there are at least two parties, each of whom has something to offer. In addition, exchange cannot occur unless the parties are able to communicate about and to deliver what they offer. Marketing is not a coercive process: all parties must be free to accept or reject what others are offering. So defined, marketing is distinguished from other modes of obtaining desired goods, such as through self-production, begging, theft, or force.
The product aspects of marketing deal with the specifications of the actual goods or services, and how it relates to the end-user's needs and wants. The product element consists of product design, new product innovation, branding, packaging, labeling. The scope of a product generally includes supporting elements such as warranties, guarantees, and support. Branding, a key aspect of the product management, refers to the various methods of communicating a brand identity for the product, brand, or company. 
Managers typically establish objectives using the balanced scorecard approach. This means that objectives do not include desired financial outcomes exclusively, but also specify measures of performance for customers (e.g. satisfaction, loyalty, repeat patronage), internal processes (e.g., employee satisfaction, productivity) and innovation and improvement activities.
A fourth question may be added to the list, namely 'How do we know when we got there?' Due to increasing need for accountability, many marketing organisations use a variety of marketing metrics to track strategic performance, allowing for corrective action to be taken as required. On the surface, strategic planning seeks to address three simple questions, however, the research and analysis involved in strategic planning is very sophisticated and requires a great deal of skill and judgement.
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.  4 Principles of Marketing Strategy | Brian Tracy
It's critical that your marketing department uses their understanding and analysis of your business's consumers to offer suggestions for how and where to sell your product. Perhaps they believe an ecommerce site works better than a retail location, or vice versa. Or, maybe they can offer insights into which locations would be most viable to sell your product, either nationally and internationally.
Market pioneers are known to often open a new market to consumers based off a major innovation. They emphasise these product developments, and in a significant number of cases, studies have shown that early entrants – or pioneers – into a market have serious market-share advantages above all those who enter later. Pioneers have the first-mover advantage, and in order to have this advantage, business’ must ensure they have at least one or more of three primary sources: Technological Leadership, Preemption of Assets or Buyer Switching Costs. Technological Leadership means gaining an advantage through either Research and Development or the “learning curve”. This lets a business use the research and development stage as a key point of selling due to primary research of a new or developed product. Preemption of Assets can help gain an advantage through acquiring scarce assets within a certain market, allowing the first-mover to be able to have control of existing assets rather than those that are created through new technology. Thus allowing pre-existing information to be used and a lower risk when first entering a new market. By being a first entrant, it is easy to avoid higher switching costs compared to later entrants. For example, those who enter later would have to invest more expenditure in order to encourage customers away from early entrants. However, while Market Pioneers may have the “highest probability of engaging in product development” and lower switching costs, to have the first-mover advantage, it can be more expensive due to product innovation being more costly than product imitation. It has been found that while Pioneers in both consumer goods and industrial markets have gained “significant sales advantages”, they incur larger disadvantages cost-wise.
Research and testing: Before you can take your idea public, you should perform marketing research and testing. Marketing departments usually test new product concepts with focus groups and surveys to gauge consumer interest, refine product ideas, and determine what price to set. Researching your competitors can help you set an optimal price and generate ideas for positioning your brand in an existing market. What Is Digital Marketing? And How Does It Work?