Customer demand for online services may be underestimated if you haven"t researched this. Perhaps, more importantly, you won't understand your online marketplace: the dynamics will be different to traditional channels with different types of customer profile and behaviour, competitors, propositions, and options for marketing communications. There are great tools available from the main digital platforms where we can find out the level of customer demand, we recommend doing a search gap analysis using Google's Keyword planner to see how you are tapping into the intent of searchers to attract them to your site, or see how many people interested in products or services or sector you could reach through Facebook IQ.
Shifting the focus to the time span, we may need to measure some "Interim Metrics", which give us some insight during the journey itself, as well as we need to measure some "Final Metrics" at the end of the journey to inform use if the overall initiative was successful or not. As an example, most of social media metrics and indicators such as likes, shares and engagement comments may be classified as interim metrics while the final increase/decrease in sales volume is clearly from the final category.
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."