Hello Ta Truc,
Updates to Suggested Prompts in Copilot Studio often don’t appear right away due to caching (browser, Teams/M365 Copilot service, CDN) and persistent user sessions that keep old configurations. Publishing usually works—the delay is caused by sync and propagation across Microsoft 365 Copilot and Teams.
To fix it: verify Save + Publish, hard-refresh or clear Teams cache, restart the chat session, republish or re-add channels, and allow time for global sync. Best practices include versioning updates, disabling the Conversation Start topic if needed, and testing changes first in the Microsoft 365 Copilot web experience.
Reference Document-
1.https://v4.hkg1.meaqua.org/en-us/microsoft-copilot-studio/configure-starter-prompts
2.https://v4.hkg1.meaqua.org/en-us/microsoft-365-copilot/extensibility/known-issues