Does scanning on a handheld device update the purchase order and inventory in Business Central in real time?

Yes, when connected to the network, every scan and quantity entry made on a Warehouse Insight handheld device updates Business Central immediately, including adjustments to the underlying purchase order, warehouse receipt, or pick document. Business Central logic runs at the time of the scan, not in a delayed batch process. The only exception is when a device loses network connectivity, in which case Warehouse Insight uses store and forward processing to catch up automatically once connectivity is restored.

Real time processing during normal operation

While a device is connected to the network, Warehouse Insight communicates directly with Business Central as each action happens. Scanning a barcode during receiving, entering a quantity, or completing a pick line all trigger the same underlying Business Central logic that would run if that transaction were entered on a desktop screen. This means the purchase order, the warehouse receipt, inventory quantities, and any related documents reflect that activity right away, not after some delay or nightly synchronization.

This real time behavior is central to solving inventory accuracy problems. If warehouse activity is only reflected in Business Central hours or a day later, the system cannot provide an accurate picture of what is actually on hand at any given moment. Immediate updates keep Business Central data aligned with the physical warehouse as work happens.

What happens in a dead spot

Warehouses are not always uniformly covered by wireless network signal, and a device can occasionally move through an area with weak or no connectivity, sometimes called a dead spot. When this happens, Warehouse Insight does not stop working. Scans continue to be captured on the device, and the application keeps retrying to send that data to Business Central. As soon as the device reconnects to the network, whether that takes a few seconds or longer, the queued transactions are sent through and Business Central catches up automatically.

Full offline mode

For situations where connectivity is unavailable for an extended period, such as a network outage lasting hours rather than a brief dead spot, Warehouse Insight also supports a full offline mode. In this mode, standard warehouse activities like receiving and picking can continue to be performed on the handheld device even though there is no connection to Business Central at all. Once the network comes back online, the device syncs everything that was captured while offline back into Business Central. There are some limitations to what can be done while fully offline compared to standard connected use, so offline mode is best treated as a fallback for unusual situations rather than a normal way of operating.

Why consistent connectivity still matters

Even with dead spot handling and full offline support available, the recommended approach is to maintain solid wireless coverage throughout the warehouse so that scanning updates Business Central in real time as the default experience. Offline and store and forward capabilities exist to handle exceptions, not to replace the benefit of immediate, live updates to inventory and order data.

Relevant Tools

Warehouse Insight is the application responsible for real time Business Central updates during receiving, picking, and other warehouse activities, including handling temporary connectivity loss through store and forward processing and supporting full offline operation when needed.

In short, a properly connected device updates Business Central the instant a scan happens, and even when connectivity briefly drops, Warehouse Insight is built to catch up automatically rather than losing that data.