Google Workspace - Do Google Meet codes expire?

Hi, I always create our meetings from Google Cal. The code seems to be valid forever, and we then use it over and over again in monthly meetings. Now I had created one in a breakout room, and we wanted to use that for new monthly meetings so to speak. But when we click on it, it doesn’t exist anymore. Does it make any difference where the code was created?

Yes, there is a difference where you create the code. Created in the calendar, it’s valid for 365 days, but the code created in a breakout room, e.g., expires once the main meeting is over. Please take a look at this list with all kinds of options.