SaaS applications commonly send welcome emails, but the challenge lies in personalizing these communications for different user types without resorting to generic messages. To address this, a company developed a sophisticated system that utilizes keyword recognition and pattern analysis to customize welcome emails based on the user's role, such as engineering, marketing, or sales. This system examines a user's title, bio, and social handles to determine the appropriate email content, thereby enhancing user engagement. The process has been standardized and integrated into their Enrichment APIs, enabling the automated categorization of new users by role and seniority, which informs the tailoring of initial communications. This approach not only personalizes the onboarding experience but also increases the relevance of the information provided in the welcome emails, ensuring that users receive content pertinent to their specific interests and potential needs.