When to use a business memo instead of an email?

A business memo is typically used for internal communication when conveying important information that requires a formal tone, such as policy changes, meeting agendas, or procedural updates. It's ideal for situations where the content needs to be documented and referenced later, or when addressing multiple recipients within the organization. In contrast, email is better suited for quick, informal exchanges or direct communication with specific individuals. Ultimately, choose a memo for significant announcements and emails for day-to-day correspondence.