Zapier is a workflow automation software that allows users to connect Microsoft Office 365 with other apps, streamlining workflows and automating tasks. With Zapier, users can create automated workflows, or "Zaps," to send emails, create tasks, and update calendars. The tool offers pre-made templates and the ability to customize workflows using user interfaces, data tables, and logic. By automating tasks, Zapier helps users focus on scaling their business, rather than getting bogged down in repetitive tasks.