Using offline scan mode on the handheld

Warehouses have dead spots — the back of a cold room, a far aisle, a loading dock. Offline scan mode lets storekeepers keep working through a brief network drop: scans are stored on the handheld and posted to Fast WMS automatically once the connection returns. Nobody stands around waiting for Wi-Fi.

It helps to know how Fast WMS commits stock, because that governs what "synced" means. Inbound stock does not truly land until putaway confirmation, and outbound leaves in two legs — pick-confirm and dispatch. A queued offline scan only affects live inventory once it has synced and reached its commit point.

Work offline and resync

1. Scan as normal. When the handheld loses its connection, offline mode buffers each receipt, putaway, or pick locally instead of failing.
2. A pending-sync indicator shows how many transactions are waiting to upload. Carry on scanning.
3. When you are back in coverage, the queued scans upload in order and post to the same document engine the desktop uses.
4. Wait for the pending count to reach zero before closing the app or handing the device to the next shift.
5. Open a stock report to confirm the transactions landed as expected.

If scans still will not upload after you are clearly back online, that is a different problem — walk through The app won't sync after reconnecting. To set up the devices themselves, see Pairing an Android scanner, and for the receiving flow these scans feed, see GRN & inbound.