I noticed that for a couple of my surveys, responses have stopped sending to my google spreadsheet. Does anyone know why this might have happened? It previously was working until a specific date.
Have you updated any credentials or access settings in your Google account recently? If so, that could have caused the connection between the two account to be interrupted.
Another thing that could contribute is if you made changes to your survey that made the Google Action itself not work.
I recommend taking a look at the troubleshooting section here to see if any of these items apply to your situation:
Hope this helps!