Communication is essential for business success. It enables managers to complete key functions like planning, organizing, leading, and controlling by establishing information sharing processes. Effective communication allows managers to understand project requirements during planning, communicate plans to team members, and set up systems for delegating work and achieving goals during organizing. It is also important for leading and decision making by providing credible information. Overall, proper communication methods are necessary for an organization to be effective by promoting motivation, building confidence, establishing discipline, and supporting management responsibilities.