Appreciate your response! Many online forms indicate that the background works when app in terminated. However that might be in an earlier release of iOS. https://stackoverflow.com/questions/26375767/healthkit-background-delivery-when-app-is-not-running Can we send a hidden notification to wake up the app and execute background delivery?

Thank you for addressing my question. Would it be possible to send a reference documentation link to share it with my team? Thanks,