# Work offline and keep your ledger in sync - URL: https://ck.abdohoo.app/help/work-offline-and-sync - Product: Credit Khata (https://ck.abdohoo.app/) - Section: Account, sync & privacy - Updated: 2026-10-11 > Sales rung up without internet are saved on the device, marked Pending, and upload by themselves in order, exactly once, when the connection returns. Check the sync pill. Credit Khata is built for counters with patchy signal. When the internet drops, a sale you ring up is saved on the device, marked **Pending**, and kept in a queue. As soon as the connection is back, the queue uploads itself in order, and each sale is posted exactly once, so a retry can never charge a customer twice. The sync pill on the **Sales** screen tells you where things stand, from **All synced** to how many are waiting. ## What works offline Counter app (browser)Android appRing up cash and credit salesYes, on the **Sales** screenYesRecord payments (Paid)Needs a connectionYesAdd a new customerNeeds a connectionYesSee customers and balancesYes, from the last saved copyYes, from the phonePayments inbox, reminders, reports, statementsNeeds a connectionNeeds a connectionThe counter app opens without internet once it has been used online on that device, because it keeps its screens, your language and your customer list. It says "Working from the local cache" while it is offline. ## Read the sync pill At the top right of the **Sales** screen, a pill shows the queue: - **All synced**: everything is on the server. - **Offline · 2 pending**: no connection; two sales are waiting on this device. - **2 to sync** or **Syncing 2…**: the connection is back and the queue is uploading. - **Not saved: 1**: the server refused a sale; see below. ![The Sales screen with the All synced pill at the top right, next to the keyboard shortcuts button](https://ck.abdohoo.app/storage/content/library/web-counter.webp)The pill at the top right of Sales shows whether every sale has reached the serverTap the pill to open **Unsynced sales**, which lists what is **Waiting to sync**. Sales still in the queue also show **Pending** and "Will sync when online" in the customer's recent entries. In the Android app, entries saved without signal show **Pending** on the customer's page, and the refresh button at the top syncs on demand. ![A Play Store screenshot of the Android app: an entry for Cheeni 2kg marked Pending on a customer's page, under the caption No signal, no problem](https://ck.abdohoo.app/storage/content/library/store-04.webp)From the Play Store listing: an entry saved on the phone stays Pending until it syncs## When a sale could not be saved Occasionally the server refuses a queued sale, for example because the customer has since been deleted, or a credit sale would now take them past their limit. The sale is not thrown away. A red bar says a sale "could not be saved. Review it before it is lost", and the pill shows **Not saved**. 1. Tap **Review** on the bar (or tap the pill). 2. Under **Could not be saved**, read the reason for each sale. 3. Fix the cause if you can, then tap **Try all again**, or tap **Discard** for a sale you do not want recorded. The Android app lists these under **Needs attention**: "The server refused these. Nothing was lost: fix, retry or discard each one." ## Before you sign out or switch branch Wait for **All synced** before signing out of the counter app. If sales are still queued, the app warns "Signing out discards them". Switching branch also asks you to sync your pending changes first. If someone else signs in on the same terminal while your sales are still queued, they are warned too, because those sales belong to your account. ## Tips for a reliable counter - Open the counter app once a day while online, so its copy of your customers is fresh. - Install it on the counter computer or phone. Most browsers offer "Install app" or "Add to Home screen" for the counter app, and it then opens like any other app. - Add new customers when you have signal, or use the Android app, which can add them offline. - For why this matters, read [Why an offline-first ledger matters for small shops](https://ck.abdohoo.app/blog/why-an-offline-first-ledger-matters-for-shops). Related: [Book a credit sale at the counter](https://ck.abdohoo.app/help/book-credit-sale-at-counter) and [Record a payment received from a customer](https://ck.abdohoo.app/help/record-payment-received). ## Frequently asked questions ### Can a sale be recorded twice if the connection is flaky? No. Every queued sale carries a unique key, so a retry, a double tap or a dropped connection cannot post the same sale twice. ### What should I do before signing out? Wait for All synced. Signing out of the counter app with unsynced sales discards them, and the app warns you before it does. ### What works offline in the counter app? The Sales screen, with your cached customer list. Adding customers, entries on a customer's page, payment claims, reminders and reports need a connection. ### Does the Android app work offline? Yes. New customers and all entries, credit, paid and cash, are saved on the phone first and synced in the background when there is signal.