If you're a digital marketer trying to make your way across the competitive landscape of today, you may have noticed that something's different. The classic 4Ps model that has been the foundation of marketing strategy since 1960 no longer reveals the whole picture. Why is that? Because marketing has transformed from pushing products to creating experiences, and the ingredients of the Fourth P have become critical to success. McKinsey's research on personalization, for instance, determines that companies employing innovative Fourth P strategies drive 5-15% revenue increase and 10-30% ROI for marketing. But here is the twist, depending on your point of view, there is actually more than one interpretation of the "Fourth P."
The classic elements of the marketing mix have a straightforward beginning. In 1960, E. Jerome McCarthy gave us Product, Price, Place, and Promotion and provided us with a model that became the industry standard in marketing education for years. But by 1981, something had to give. The service economy was on the rise, and marketers saw the need for more tools to address what they were marketing, which was increasingly intangible.
And then comes along Bernard H. Booms and Mary J. Bitner, who unveiled their groundbreaking extension at AMA's Services Marketing conference. They tacked on three additional Ps: **People, Process, and Physical Evidence**. This wasn't academic theory, it had real applications to the challenges marketers were dealing with every day.
The endorsement by the Chartered Institute demonstrates that globally, 7Ps had become the standard framework worldwide for practitioners. An extensive academic study conducted by Rafiq gazetted the absolutely rigorous benchmark of 91.2% of marketing academics that supported this new approach. It's a move that makes sense in the context of Salesforce's own customer experience data, which finds that 84% of customers now say the experience a company provides is as important as its products or services.
People also refers to employees serving clients and the larger workforce backing up the service delivery. This also includes customer care agents, sales teams, and those who work behind the curtains and indirectly influence the customer service experience. Companies that perform well in the People element invest more in training, cultivate positive work environments, and empower employees to make decisions that serve customers.
Process applies to the step-by-step procedures or actions used by a company to provide services or to conduct business. This is everything from ordering systems, to delivery logistics, to customer service protocols. When things are done effectively, friction is reduced, wait times are shorter, and there is a predictable, repeated experience that customers can trust.
Physical Evidence refers to everything tangible that the customer comes into contact with when they interact with a business. That's including the building, packaging, website, documentation, and any physical touchpoint that helps add to that trust in your brand and quality of your service. These days, this encompasses both UI/UX and how a website and the content is presented online.
What academics concluded with the 7Ps, digital marketers find something remarkably different. Companies like Netflix, Amazon, and Spotify weren't just adding People or Process, they were innovating with hyper-personalized experiences that disrupted entire industries. This is how Personalization became the so-called "new Fourth P" or even "Fifth P" of marketing today for many.
The statistics tell a story of their own. Personalization elements contribute 40% more to the revenue of fast-growth companies against that of their slower-growth competitors. Netflix is also known to have recommendation engine accounting for 80% of its watched content. Custom product recommendations make up for 35% of total revenue for Amazon. This is not just marginal improvement, this is the core of transforming how business is done.
i"Marketing is no longer about the stuff you make but about the stories you tell. But in 2025, stories are no longer sufficient. What we are doing is telling the right story to the right person at the right time through advanced data analysis and automation."
— Seth Godin, Marketing Author and Entrepreneur
Sephora changed the game in retail beauty shopping with complete Fourth P strategies at their fingertips. Their Beauty Insider program isn't just a purchase tracking program, it also harnesses AI to recommend products based on your skin type, color preferences and past purchases. The Virtual Artist tool allows customers to sample makeup through augmented reality, and Color IQ customizes shade matching.
The results speak volumes. Beauty Insider members drive 80% of Sephora's transactions and the program has more than 25 million members globally. That's 5 straight years at the top of Sailthru's Retail Personalization Index. Sephora designed an ecosystem with a strong emphasis on the environmental elements of People (artist network and community) and Process (integrated across bricks & clicks, online/offline experience) with Personalization (algorithms driving the discovery, personal product pushes).
With a more innovative approach to the traditional transactional norm, the business has a 22% higher cross-sell active rate and substantial 13-51% lift in upsell revenue through its advanced loyalty program. What is particularly impressive is how they've developed what industry professionals refer to as an "emotional loyalty" mechanism, as opposed to a points based rewards program.
Netflix took the idea of Physical Evidence, something traditionally physical about a service, like a neat office, and reinvented it for the digital age of streaming. Each of the thumbnails you see is tailored to your viewing history, meaning each user is served up a different set of images to feast their eyes upon. Platform relies on 76,897 micro-genres for itemization of Content, and on an annual basis conducts A/B testing on 250 configurations, 100,000 users being involved in optimization of Content.
Their one-to-one user targeting program was part of the reason behind their $1.18 billion profit for 2024, their most lucrative year in company history. Netflix, with 263 million paying subscribers worldwide, shows us that when you nail the elements of the Fourth P, whether that's People (understanding viewer preferences), Process (streaming without a hitch) or Personalization (recommendation algorithms), you can win entire industries and develop lasting competitive advantages.
Spotify Wrapped has become a cultural phenomenon in part because it's effectively turned a user functionality inside-out and created shared, individual experiences for millions of ever-elaborating social media posts every year. But there's more, much more, beyond that. NoGood analysis: Their Discover Weekly playlists boast a 40% engagement rate, and their personalization strategy across the platform collectively helped earn them €9.67 billion in revenue in FY 2022 up 16% YoY.
i"Today's marketers live and work in a rapidly changing environment: They are working for a company, and the company is trying to satisfy or delight them by providing value through the seven components of the marketing mix."
— Philip Kotler, The Father of Modern Marketing
Firms that execute broad-based Fourth P strategies enjoy significant increases over time in a variety of customer metrics. When you concentrate on People, developing your staff, developing your people, creating relationships and connections, customer satisfaction ratings go up 20–30%. And throw Process optimization into the mix, and you're cutting down friction points that lead to abandonment. Add in Personalization, and you build experiences around which your customers will stick for years.
Studies show that personalized engagement results in 40% greater customer lifetime value than generic methods. It isn't just that you get better service, it is that you get systematic benefits that build momentum and form a competitive moat that competitors find very hard to replicate.
The Elements of Fourth P work together to get the most possible from every dollar a company spends in marketing. Personalized email marketing has an average return on investment (ROI) of $42 for every $1 spent, and that number extends to an ROI of 45:1 for retail. Meanwhile, firms that use a Marketing Mix Modeling approach realize 15-20% higher return on investment in overall marketing spend by more effectively allocating resources.
The secret is to know how the elements of People, Process and Physical Evidence drives multiplier effects. When your customer service team (People) are backed by effective processes (Process) and professional presentation (Physical Evidence), the elements combine and lift one another, rather than sitting in silos.
With more crowded markets, the elements of the Fourth P become your primary differentiators. In contrast to rival behavior where intense competitors fight based on product and price, superior performance in People, Process, Physical Evidence, and Personalization leads to sustainable competitive advantages that are hard to replicate. Consumer research today tells us that 71% of consumers now prefer personalised experiences and that means it is no longer a nice-to-have but a must-have.
Companies that excel at this are competing on more than price, they are competing on the experience, the quality of the relationship, the value they can deliver above and beyond the initial transaction. This in turn results in lasting customer loyalty that does not crack under pressure from the competition or an economic downturn.
A significant amount of contemporary Fourth P work depends on advanced data collection and analysis. Companies adopting sophisticated Marketing Mix Modeling experience 25% increase in decision-making certainty, along with 20-30% more precision in forecasting, over classic methods. This is now taking marketing from guesswork and gut feeling to scientific methodology.
Data from People interactions, Process optimizations and Physical Evidence tests feed back loops of best performance of all marketing activities to be improved over time, leading to self-improving marketing activities.
The lovely thing about Fourth P strategies is that, because they are exponential, they scale magnificently. And when you have strong Processes, People trained the right way, and Personalization engines built, they all compound, as opposed to needing to get re-invested in all of the time. Organizations claim that reallocation of budgets following insights into Fourth P can improve ROI across the board by 10-15% and cut the cost of all operations.
Unlike advertising, where to receive results you've got to be investing all the time, Fourth P improvements create lasting competitive advantages that continue paying dividends long after initial implementation, making them ideal for sustainable business growth.
Promotion is often referred to as the Fourth P in McCarthy's original 4Ps. However, contemporary marketing acknowledges the 7Ps extended model with People, Process and Physical evidence as the fourth, fifth and sixth Ps. Even other traditional P's have been left behind as the new "P", Personalization, quickly makes it's way into the mainstream marketing conversation around the digital water cooler.
First thing to do is a full inventory of how you are doing it now on all those P's. For People: Assess the skills of your team, training programs, and any point of contact with your customers, do they consistently deliver brand-aligned experiences? For Process: Map an entire customer journey and pinpoint any friction, then use analytics software and feedback from customers. When it comes to Physical Evidence, consider your online brand, your website, your customer testimonials, and your credibility markers. For Personalization: Begin systematically gathering & analyzing customer data for tailored experiences through email segmentation, behavioral targeting, and dynamic content.
The importance depends on your business model, existing gaps and available resources. As a rule of thumb for Service businesses, People and Process should be the attention areas as most customer value and satisfaction gets derived from human interface. E-commerce firms, in particular, can experience quick wins from Personalization via recommendation engines, personalized messaging, and dynamic pricing. Perhaps B2B companies develop Physical Evidence first, case studies, testimonials, professional presentation since trust signals become quite important in longer sales cycles and higher-value transactions. Honestly evaluate where you have the greatest gaps or greatest potential for measured improvement.
Industry standards indicate that 15-25% of your total marketing budget should be devoted to Fourth P components, but that varies widely by industry and stage of maturity. Organizations report 3-5x returns within first 12-18 months on investments in personalization technology and training. But smart implementation begins small when developing pilot programs, try one component at a time, monitor results, and scale based on known performance, rather than sinking big investments without prior validation.
Sure can, and sometimes even better than big companies. The People component, this is where small business often can have the edge in spades, after all you know what they've got, they're not operating with out of date cost centres, and they're not taking the decision to their "owners" in another state, it's just you, and you know today, not in the future. Basic improvements such as automated email sequences, basic personalization through tools such Mailchimp and email collection through a repeatable customer feedback process can provide a big lift as well. Focus on one area at a time, you can utilize free or low-cost tools to start, and keep in mind that many Fourth P enhancements require more strategic consideration and systematic activity than they do large cash investments.
Define the measurements of success for each part ahead of time. For People: monitor employee satisfaction scores, customer service ratings, Net Promoter Score and community engagement metrics. For Process: track conversion rates per steps, time to purchase, customer effort scores, and abandon rates. For Physical Evidence: utility of trust signals performance, popularity of social proofs, brand perception surveys, website credibility dimensions. For Personalization: study increase in engagement rates, average order value, lifetime value of a customer, and conversion improvements per segment. Employ cohort analysis to understand long-term outcomes, rather than just immediate ones.
Begin with must-have tools such as CRM systems (HubSpot, Salesforce) for People management and customer data, analytics platforms (Google Analytics 4, Mixpanel) for Process optimization and performance tracking, personalization engines (Optimizely, Dynamic Yield) for targeted experiences, process automation tools (Zapier, Make) for throughput, and customer feedback systems (Typeform, SurveyMonkey) for iterative feedback. Start with free or low-cost alternatives, test your method, and then invest in more advanced tools as you grow and demonstrate success with your efforts.
i"The Fourth P evolution represents more than just adding new elements to the marketing mix, it's about fundamentally shifting from product-centric to customer-experience-centric thinking. Companies that master this transition don't just improve their metrics, they create sustainable competitive advantages that are nearly impossible to replicate."
— Tessar Napitupulu, CEO of Arfadia and Digital Marketing Expert
Before jumping in with tools, techniques, etc., make sure you have a set of clear, measurable goals for all elements of the Fourth P. Explain what success looks like for People (customer satisfaction scores, staff engagement), Process (conversion rates, efficiency metrics), Physical Evidence (trust markers, brand reputation), and Personalization (engagement rates, revenue per customer). Then have a responsibly made strategy aligning these to overall business goals instead of ad-hoc improvements everywhere without strategy.
Best-in-class companies recommend the tried-and-tested 70-20-10 ratio, where 70% is committed to working Fourth P strategies with serviceable ROI, 20% to emerging practices with strong potential, and 10% to experimental Fourth P approaches for potential future delivery. This balanced method produces consistent outcomes and encourages ongoing improvement and competitive advantage.
"Make sure your organization is offering tools and information that is valuable now," writes Sara Varni in current insights. Which is why you need hard data infrastructure, and systems in place to collect it in the first place. Establish a centralised customer data platform (CDP) that links all touchpoints, allowing for individualised marketing, in line with privacy regulations and ensuring customer trust with clear data usage guidelines.
Effective implementation of Fourth P requires dismantling of departmental silos within the organisation. Your People determines your Process which in turn supports the Physical Evidence you present, and it ought to all be fed into your Personalization engines that keep the optimization flowing.
i"It's the customers' conversation now. To lead them, you have to stand amongst them."
— Robin Korman, Marketing Executive
Invest in continuous education that helps them see how their individual role ties in to broader Fourth P agendas and business success. When your people know why they do what they do, they'll work to improve, and be inspired, rather than just follow what the book says.
Anne Finucane's business principle is: *"If you establish a purpose, then you'd better deliver on that purpose. That is the filter on which you decide everything."* Use that as the basis of Fourth P testing by testing regularly and systematically. Conduct measured A/B tests around Process changes, pilot new Physical Evidence factors with small clusters of customers, and slowly scale Personalization around those hurdles using data, not hunches.
Create stringent testing protocols that enable you to separate the influence of the P-elements from the others one by one, and then together. By taking this empirical approach, you can avoid costly mistakes and make changes not based on intuition or industry fashion, but on what's proven for you.
i"Best marketing does not feel like marketing."
— Seth Godin, Marketing Author and Entrepreneur
Just make sure your Fourth P actions are always in line with core brand truths and customer expectations. Uniformity among People behavior, Process design, Physical Evidence presentation, and how companies aim Personalization efforts produce seamless experiences that are genuine and beneficial not contrived or controlling.
The Fourth P isn't some cadence punctuating a recurring parade of empty marketing buzz, it's the underlying transformation of how successful businesses engage with customers in ways that are both meaningful, profitable, and sustainable. Whether you make it easy for people to love you through the 7Ps of academe (People, Process, and Physical Evidence), or you do the mental shift and focus on Personalization, the message is clear: marketing success in 2025 requires moving beyond product-centric thinking to experience-centric strategy.
Businesses who become proficient at the Fourth P components see these specific, measurable payoffs that only get better as time goes on: 40% more sales through personalized customer offers, 15-20% increases in marketing ROI for optimized processes, and 25% improvements in customer retention through people-centric approaches. These are not incremental improvements or slight refinements, these are transformational results that differentiate market leaders from the pack in the increasingly competitive, digital world.
The Fourth P is *the* challenge for digital marketers aged 25-35, but also the once-in-a-lifetime career opportunity and business impact. You have a unique opportunity to use sophisticated technology and retain that authentic human touch, where you can automate complex processes that still feels personalized, and you can scale systematic processes that still feel personal and valuable for the customer.
Begin with what you have, focus on one aspect at a time to maximum effect, then build systematically towards the total synthesis which is comprehensive mastery of the Fourth P in ways that your competition never can match. Remember Sheryl Adkins-Green's sage statement: *"Marketing momentum is the everyday energy and relevance that you keep pulsing through your brand and organization."* The Fourth P is the strategy catalyst that creates that momentum when equal focus comes in line with People, Process, Physical Evidence and Personalization together.
The future is for marketers who are able to integrate all P elements, both traditional and new, to their business strategies to truly delight customers, as well as to sustain business growth and profitability. Become a Fourth P master and you're not just marketing products or services, you're creating experiences customer's don't even know they can't live without, relationships they actually treasure, and value propositions your competitors can't even begin to understand, much less get right.
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