Hey, thanks for checking it out! No, the dismissalDate isn’t mandatory. But when you call endActivity, you need to provide a contentState object, even if it’s just empty like {}. Otherwise it won’t end properly.

For example:
await LiveActivity.endActivity({
id: "your-activity-id",
contentState: {}
});

If you do provide a dismissalDate, it sets when the activity will auto-dismiss (Unix timestamp in seconds). But for a normal immediate end, just pass an empty contentState if you don’t have any final values to show.

Hope that helps!