External communication involves sharing information between the organization and external entities such as customers, suppliers, investors, and the public. It includes marketing, public relations, and customer service communications. Effective external communication builds the company's brand, fosters relationships, and supports business goals.

For example, a consumer goods company might use external communication to launch a new product, engage with customers on social media, and provide information to investors. Clear and consistent external communication helps maintain a positive brand image and drives business success.