August 8, 2021 5 minutes readEntrepreneur contributors do not necessarily agree with the opinions expressed.Digital marketing is, for the most parts, very simple. Anyone can create an ad campaign via Facebook or Google and drive clicks. There is a lot of competition and everyone wants to be part of the online action.There are many ways to get people's attention with the advent of tech startups and new-age tech. There are many options for digital marketing, including click-based ads on YouTube, banner ads on YouTube, story ads, and banner ads on YouTube. Digital marketing is becoming more difficult.Although running ads is easy, digital marketers and startups face the greatest challenge of getting a return on their advertising dollars. If the customer does business with you and you make a profit, it is difficult to obtain an ROI.While anyone can finance ads with investor money at the beginning, it's not sustainable for long-term growth. Digital marketing requires that you ask the right questions.Related: 5 Effective Digital Marketing Strategies to Increase SalesThe funnel conceptThere are many stages to a funnel. It is important to ensure that each stage of the funnel is built solidly. Small businesses that are self-sufficient are generally not able to afford branding campaigns. Your brand name is not enough to convert customers.Focusing on lead generation is key to digital marketing's effectiveness. The best way to get potential customers in the funnel is to collect names, email addresses, and phone numbers. The best way to get people to sign up is to give away something in return. Because it attracts leads, this is often called a lead magnet. It is a kind of ethical bribe you offer to visitors in exchange for their email ID, and permission to market again via email.After this stage, most brands (both B2B or B2C), just get sloppy. Leads are not ready to purchase your product or services. It is essential to build trust. Engagement is the key to trust. Good content will help you engage.Ad campaigns can be scaled, so it is important to nurture them at scale. Marketing automation is the best way to nurture thousands upon thousands of leads. Deep marketing, which I call personalization in marketing automation, is also necessary.Deep marketing is the art of creating a marketing funnel that allows every segment of your leads and customers to receive unique content that is relevant. Cold leads will become warmer leads faster if they are more relevant. It takes time to convert cold leads to warm leads. The best way to do this is to send several emails spread over a period of 2-3 days.Similar: How to Create a Digital Marketing Plan That WorksWarm leads are worth their weightBefore you can sell to leads, trust must be established. To convert cold leads to warm leads, you must nurture them over time. Warm leads are not the answer. Warm leads don't put money in the bank. If you want warm leads to become customers, they need to be nudged. Without being pushy or sleazy, you should gently push them to make a purchase.The first stage of the funnel is to attract attention, and the second is to build trust. A compelling copy and sales pitch are the third and most important stages.Once they are willing to make a transaction with you, trusting you isn't enough. There are many sales methods that can convert warm leads into paying customers. Sales pages, videos, meetings, webinars, and even offline meetings can all be used to convert warm leads into paying customers.An ad campaign's effectiveness is not only dependent on its ads. It also depends on the nurturing process and sales efficiency. You can take the profit earned from the transaction and invest it in ad campaigns that will grow if it goes well.If this is done well enough, it builds a brand reputation. Reputation helps to boost response rates metrics like the click-through rate, visitor-to–leads ratio and lead-to–customer ratio.Related: How to Navigate a Fast-Changing Digital Marketing Landscape