The scenario describes a complex, multi-step business process that requires automation, integration with multiple systems (HR system, Teams), and a consistent, governed workflow. In Microsoft Copilot Studio, a custom agent (also referred to as a custom copilot) is the appropriate component to build for this purpose. It can be designed to follow specific logic, connect to various data sources and applications using connectors and plugins, and execute a series of actions in a predefined sequence, moving beyond simple one-off prompts to encapsulate an entire business workflow.

A. prompt library: This is a collection of reusable prompts for users, not an automated workflow that connects to backend systems to perform actions.

B. single macro: A macro typically automates a simple, repetitive task within one application, not a complex, multi-system workflow as described.

D. static FAQ page: This is a non-interactive information source and lacks any capability for automation, system integration, or executing workflows.

1. Microsoft Learn. "Overview of Microsoft Copilot Studio." Microsoft Copilot Studio documentation. "Microsoft Copilot Studio lets you create powerful AI-powered copilots for a range of requests—from providing simple answers to common questions to resolving issues requiring complex conversations. Engage with customers and employees in multiple languages across websites

mobile apps

Facebook

Microsoft Teams

or any channel supported by the Azure Bot Framework."

2. Microsoft Learn. "Quickstart: Create and deploy a plugin-based copilot." Microsoft Copilot Studio documentation. This guide demonstrates building a copilot that uses plugins to connect to external data and perform actions

which is the core of the described requirement.