1. Step 1: Please go to Automation → Automation rule→ New from Templates → Conversation auto-closing.
2. Step 2: Please set up a specific time for customer non-response time.
3. Step 3: Add condition to choose messages channels if you need.
Once you save the settings, the auto-closing rule will be active, and apply the rule to new conversations. If you have any questions, please let us know. Thank you!