Step 1: Start Fast Form On/Off in Google Forms
1) SetOn et SetOff
You can schedule the closing and opening at a specific date and time of your Google Form with the SetOn and SetOff option.
2) Stop Accepting Responses After…
You can stop accepting responses after a certain number. You can configure that number in the application using the StopAfter function.
You can receive notifications after each 5, 10 or 20 responses in your Google Form by using the Notification feature.
The add-on is available in the Google Workspace Marketplace