User OAuth Token For managing user profiles and accessing sensitive user data, a User OAuth Token is required. This token type provides permissions at the individual user level, ensuring the app operates with the necessary permissions granted explicitly by users, in line with security best practices.
Why not the other options:
*A Bot User OAuth Token operates on behalf of the bot user, not individual Slack users, and may not have the required permissions to manage user profiles or access sensitive data.
*Workspace Access Token is not a standard token type in Slack API.
*An App-Level Token typically provides access to workspace-level data and features, not individual user-level actions or information.