window
The SDK provides functionality to organize window ids so that inclusion and exclusion filters can be evaluated.
Naturally, the window id does not expire after a specific time. Keep in mind though, that it can not be guaranteed for a window id to function properly after a waiting time of 60 seconds between requests with that same window id.
To use the same window id, you can pass a value when creating an instance of Advertisement interface using the AdService.makeAdvertisement method.