From a model-building perspective, the 4 Ps has attracted a number of criticisms. Well-designed models should exhibit clearly defined categories that are mutually exclusive, with no overlap. Yet, the 4 Ps model has extensive overlapping problems. Several authors stress the hybrid nature of the fourth P, mentioning the presence of two important dimensions, "communication" (general and informative communications such as public relations and corporate communications) and "promotion" (persuasive communications such as advertising and direct selling). Certain marketing activities, such as personal selling, may be classified as either promotion or as part of the place (i.e., distribution) element.[47] Some pricing tactics, such as promotional pricing, can be classified as price variables or promotional variables and, therefore, also exhibit some overlap. What is Digital Marketing?
Marketing strategy involves mapping out the company's direction for the forthcoming planning period, whether that be three, five or ten years. It involves undertaking a 360° review of the firm and its operating environment with a view to identifying new business opportunities that the firm could potentially leverage for competitive advantage. Strategic planning may also reveal market threats that the firm may need to consider for long-term sustainability.[9] Strategic planning makes no assumptions about the firm continuing to offer the same products to the same customers into the future. Instead, it is concerned with identifying the business opportunities that are likely to be successful and evaluates the firm's capacity to leverage such opportunities. It seeks to identify the strategic gap; that is the difference between where a firm is currently situated (the strategic reality or inadvertent strategy) and where it should be situated for sustainable, long-term growth (the strategic intent or deliberate strategy).[10]

The category/brand development index is a method used to assess the sales potential for a region or market and identify market segments that can be developed (i.e. high CDI and high BDI). In addition, it may be used to identify markets where the category or brand is under-performing and may signal underlying marketing problems such as poor distribution (i.e. high CDI and low BDI).
Email marketing - Email marketing in comparison to other forms of digital marketing is considered cheap; it is also a way to rapidly communicate a message such as their value proposition to existing or potential customers. Yet this channel of communication may be perceived by recipients to be bothersome and irritating especially to new or potential customers, therefore the success of email marketing is reliant on the language and visual appeal applied. In terms of visual appeal, there are indications that using graphics/visuals that are relevant to the message which is attempting to be sent, yet less visual graphics to be applied with initial emails are more effective in-turn creating a relatively personal feel to the email. In terms of language, the style is the main factor in determining how captivating the email is. Using casual tone invokes a warmer and gentle and inviting feel to the email in comparison to a formal style. For combinations; it's suggested that to maximize effectiveness; using no graphics/visual alongside casual language. In contrast using no visual appeal and a formal language style is seen as the least effective method.[59] A DAY IN THE LIFE OF A DIGITAL MARKETING MANAGER | WHAT DOES A DIGITAL MARKETER DO? & SALARIES