The document discusses the importance of planning business messages by analyzing the situation, gathering information, selecting the right medium, and organizing the information. It provides guidance on analyzing the purpose and audience, gathering stakeholder input, and choosing oral, written, visual, or electronic channels based on factors like feedback needs and message complexity. The document also outlines how to define the main idea, limit the scope, choose a direct or indirect structure, and create an outline to organize the message content in a logical way for the audience.