What is a short document sent internally within a company to convey information?

A memo is specifically designed for internal communication within a company, serving as a concise method to convey information, updates, or instructions to employees or specific departments. It typically includes a heading, the purpose of the memo, and the relevant information or directives. Memos are often used for quick, direct communication, making them an efficient tool for organizations to keep staff informed and aligned on various topics.

While reports, notices, and bulletins can also facilitate communication, they differ in purpose and structure. Reports are generally longer and contain detailed analysis or findings on a particular subject, while notices often address particular events or policy changes but may not follow the memo's streamlined format. Bulletins may intent for broader distribution, serving to inform a larger audience beyond specific departments or teams. Thus, in the context of conveying information internally in a brief and focused manner, the memo stands out as the most fitting option.