CRM, or Customer Relationship Management, is important in the first step of digital marketing for several reasons:
Improved customer relationships: CRM software allows you to collect and manage customer data in one place, enabling you to understand your customers' needs and preferences better. This, in turn, allows you to provide more personalized and targeted marketing, sales, and customer service, leading to stronger and more profitable relationships with your customers.

Increased sales: By using CRM software, you can identify leads more effectively, track sales pipelines, and create targeted marketing campaigns. This can help you to close more deals, increase revenue, and improve your bottom line.

Enhanced customer service: CRM software can help you provide better customer service by tracking customer interactions and history, enabling you to respond quickly to inquiries and resolve issues more efficiently.

More efficient operations: With CRM software, you can automate many tasks such as sending emails, scheduling appointments, and generating reports, saving time and resources. This can lead to more streamlined and efficient operations and help to improve productivity and profitability.

Analytics: CRM software provides valuable analytics and insights into your marketing campaigns. You can track key performance indicators such as open rates, click-through rates, and conversion rates, and use this data to continually improve your marketing efforts.
By creating appropriate filters and categorizing clients, companies, and individuals, you can extract the best from this gold mine.