Microsoft 365 Copilot integrates with Microsoft Search to help users discover relevant content across their organization’s Microsoft 365 data estate, including SharePoint, OneDrive, Teams, and Exchange. When the objective is to determine whether similar training plans already exist, the appropriate action is to perform a search across organizational content.

Using Search allows Copilot to query indexed enterprise documents and return files, plans, or related materials that the user has permission to access. This supports content reuse, avoids duplication of work, and aligns with Microsoft’s guidance on leveraging organizational knowledge efficiently.

Designer is focused on visual content creation, Apps provides access to Microsoft 365 applications, and Pages is used for creating and organizing content within Copilot. None of these options are intended for discovering existing documents across the tenant.

Therefore, to identify similar existing training plans within your organization, the correct tool to use in Copilot is Search.

==================================================