> For the complete documentation index, see [llms.txt](https://docs.tryterra.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tryterra.co/faq/help-topics/something-else/realtime-ble-and-mobile-delivery/android-background-delivery-limits.md). # Why is Samsung background delivery unsupported? Android background delivery is limited by **deep-sleep battery optimisation**, which suspends background tasks after a few hours. There is currently no general-availability background-delivery pathway for Samsung Health. Workarounds: * Have users exempt the app via **unrestricted battery use** in Android settings. * Periodic **WorkManager**-based syncs work but aren't guaranteed to run exactly on schedule. Because Google pushed the Google Fit API deprecation to 2026, the existing Samsung-to-Google-Fit pathway keeps working in the meantime, so plan the migration but there's no forced cutover. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.tryterra.co/faq/help-topics/something-else/realtime-ble-and-mobile-delivery/android-background-delivery-limits.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.