The text discusses seven essential characteristics of effective messages in customer communication. To engage customers and produce desired results, messages need to be targeted and expertly crafted, with a personal tone that establishes a connection without being overly friendly or familiar. Personalization is also crucial, as it ensures the content is specific and relevant to each user. Being polite, getting to the point, getting it right, being relevant, and using the right tone and voice are all vital elements of good message craft. By incorporating these characteristics into customer communication, businesses can improve engagement, build trust, and maintain consistency across all communications.