> For the complete documentation index, see [llms.txt](https://learn.withessential.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://learn.withessential.com/field-operations/mobile/work-offline-and-sync.md). # Work offline and sync mobile changes When the device has no internet connection, the mobile app shows: You're offline. Changes will sync once you're online. With internet access, refresh the Visits screen before going offline so the app has the latest visit data. Continue only with work the app allows while offline. If the device is online but its connection to Essential is slow or unreliable, the app shows: Your connection is unstable. Some actions may be slow. Changes continue to queue until the connection settles. Quote and invoice edits stay on the device while you work offline. Drafts you explicitly save appear in the job's quote or invoice list as **Saved on device** or **Pending sync**. A draft labeled Pending sync can still be edited. You can save either kind of draft, and you can finalize an invoice for later syncing unless Essential still needs an online payment provider to calculate its sales tax. A finalized offline invoice is locked while it waits to sync. Turning a signed quote already stored on the device into a new invoice draft also works offline. Reconnect before generating with AI, previewing a PDF, sending a document, using **Mark Quote Signed**, or collecting payment. Cached visit details open immediately while the app checks for a newer version in the background. If a visit is not cached but the slow connection is still reachable, the app continues loading its details and saves them to the device. If the device has no connection, reconnect once before opening an uncached visit. If you tap **On My Way** before the connection is stable, the app saves the attempt and shows **Customer not notified**. It tries the customer notification again after the connection stabilizes; an old en-route notification is not sent later. You can publish an inspection report while offline. The report is saved on the device and publishes automatically when you reconnect, and its PDF appears in the job files at that point. Two things still need a connection: previewing the PDF before you publish, and emailing the report. A report published offline is not emailed to anyone, so publish while online when you need contacts to receive it. Some actions may be disabled until the device reconnects. When the app reconnects, it shows Syncing offline changes while queued changes are being sent. Offline changes, including photos and files, are saved on the device for the signed-in user and business. You can close and reopen the app and continue with the same account. Another account on the device cannot see or send those changes. After reconnecting, wait for syncing to finish before uninstalling the app, clearing app data, or switching devices. Offline work does not move automatically to another device. If a change cannot sync, the app keeps it in **Some offline changes need attention** and shows the action, record, and error. Correct the problem if needed, then select **Retry**. If it continues to fail, keep the app data on the device and contact support with the action and record shown. > **Where to find it:** Mobile app connection banner ## Related guides * [Use On My Way, Clock In, and Clock Out](/field-operations/mobile/on-my-way-clock-in-clock-out.md) * [Fill inspection reports on mobile](/field-operations/mobile/fill-inspection-reports.md) * [Create and send quotes and invoices on mobile](/field-operations/mobile/create-and-send-quotes-and-invoices.md) * [Add files, notes, and access info on mobile](/field-operations/mobile/add-files-notes-and-access-info.md) --- # 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, and the optional `goal` query parameter: ``` GET https://learn.withessential.com/field-operations/mobile/work-offline-and-sync.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. 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.