Temporary chat in Microsoft 365 Copilot is designed for privacy-focused, non-persistent interactions. When a user initiates a temporary chat session, the conversation is not saved to Copilot chat history and is not retained for future reference within the standard conversation history interface.

Once the session ends or a new chat begins, the prompts and responses from that temporary session are deleted immediately. They are not moved to OneDrive, stored in a notebook, or retained for a delayed deletion period.

This feature supports secure and confidential usage scenarios where users may want to explore ideas, draft sensitive content, or test prompts without creating a stored record in their activity history.

From a generative AI governance perspective, this reflects Microsoft’s design principle of providing configurable persistence levels, balancing productivity with enterprise security, compliance, and user privacy controls.