is there a documented way to schedule when a live activity changes? I have observed other apps that can update their live activities, (countdown timer that changes at 0:00 to 'Timer Complete') I've observed apps that can do this without using a server (my device was in airplane mode) and while the app was backgrounded. but I cant figure out how to do it in my own app

I have an iOS app, Timely, that provides App Intents / Shortcuts actions for starting countdown Live Activities. The same action works correctly when run directly from the Shortcuts app or from Shortcuts automations. It also works through Siri when there are no existing Timely Live Activities. However, when one Timely countdown Live Activity is already active, asking Siri to start a second countdown fails. Siri responds with: Something went wrong, please try again. I added focused logging around the exact ActivityKit start path. The intent does start, ActivityAuthorizationInfo().areActivitiesEnabled is true, and the code reaches Activity.request(...). The failure is thrown directly by ActivityKit: [StartCountdownLiveActivityIntent] perform started countdownId=ef6eace3-1186-4263-8215-ddcc80fd34ae activitiesEnabled=true activeActivityCount=1 [StartCountdownLiveActivityIntent] existing activity activityId=D469D281-45BC-42F1-9DC9-83A8F346EC9C eventId=0d1365ee-dc30-4bc9-a6b3-6c9151098b8b state=active eventTime=2026-06-12T17:00:00Z [StartCountdownLiveActivityIntent] before Activity.request eventId=ef6eace3-1186-4263-8215-ddcc80fd34ae enablePushToken=true activitiesEnabled=true activeActivityCount=1 activities=[activityId=D469D281-45BC-42F1-9DC9-83A8F346EC9C,eventId=0d1365ee-dc30-4bc9-a6b3-6c9151098b8b,state=active,eventTime=2026-06-12T17:00:00Z] [StartCountdownLiveActivityIntent] Activity.request threw eventId=ef6eace3-1186-4263-8215-ddcc80fd34ae originalError=visibility localizedDescription=The operation couldn’t be completed. Target is not foreground nsErrorDomain=com.apple.ActivityKit.ActivityAuthorization nsErrorCode=7 nsErrorUserInfo=[:] So the error appears to be: ActivityAuthorizationError.visibility NSError domain: com.apple.ActivityKit.ActivityAuthorization NSError code: 7 Localized description: The operation couldn’t be completed. Target is not foreground The important part is that this only seems to happen when invoked through Siri and only when another Live Activity from the same app is already active. Running the same App Intent through Shortcuts succeeds. Is this an expected limitation of Siri-hosted App Intents / LiveActivityIntent execution, or is this an ActivityKit/Siri bug? FB23079760

I hope I'm just missing something is there a way to schedule when a Live Activity should be dismissed, or schedule when its content will change? (local, without a server) I have observed other apps have the ability to swap out their countdown view for a 'timer complete' all while the app is backgrounded and airplane mode is on (ie its not being updated via server) however when trying to build any kind of similar functionality into my own app I come up short, I see no way to schedule when a live activities view will change, and similarly no way to schedule when it should be dismissed, and the system doesn’t treat the stale date as a flag for clearing an out of date live activity

I have an iOS app, Timely, that provides App Intents / Shortcuts actions for starting countdown Live Activities. The same action works correctly when run directly from the Shortcuts app or from Shortcuts automations. It also works through Siri when there are no existing Timely Live Activities. However, when one Timely countdown Live Activity is already active, asking Siri to start a second countdown fails. Siri responds with: Something went wrong, please try again. I added focused logging around the exact ActivityKit start path. The intent does start, ActivityAuthorizationInfo().areActivitiesEnabled is true, and the code reaches Activity.request(...). The failure is thrown directly by ActivityKit: [StartCountdownLiveActivityIntent] perform started countdownId=ef6eace3-1186-4263-8215-ddcc80fd34ae activitiesEnabled=true activeActivityCount=1 [StartCountdownLiveActivityIntent] existing activity activityId=D469D281-45BC-42F1-9DC9-83A8F346EC9C eventId=0d1365ee-dc30-4bc9-a6b3-6c9151098b8b state=active eventTime=2026-06-12T17:00:00Z [StartCountdownLiveActivityIntent] before Activity.request eventId=ef6eace3-1186-4263-8215-ddcc80fd34ae enablePushToken=true activitiesEnabled=true activeActivityCount=1 activities=[activityId=D469D281-45BC-42F1-9DC9-83A8F346EC9C,eventId=0d1365ee-dc30-4bc9-a6b3-6c9151098b8b,state=active,eventTime=2026-06-12T17:00:00Z] [StartCountdownLiveActivityIntent] Activity.request threw eventId=ef6eace3-1186-4263-8215-ddcc80fd34ae originalError=visibility localizedDescription=The operation couldn’t be completed. Target is not foreground nsErrorDomain=com.apple.ActivityKit.ActivityAuthorization nsErrorCode=7 nsErrorUserInfo=[:] So the error appears to be: ActivityAuthorizationError.visibility NSError domain: com.apple.ActivityKit.ActivityAuthorization NSError code: 7 Localized description: The operation couldn’t be completed. Target is not foreground The important part is that this only seems to happen when invoked through Siri and only when another Live Activity from the same app is already active. Running the same App Intent through Shortcuts succeeds. Is this an expected limitation of Siri-hosted App Intents / LiveActivityIntent execution, or is this an ActivityKit/Siri bug?