Under Serial-number items you work with items tracked by individual serial number. Here you can look up the individual serial-number item and edit its details.
Search and filter the serial-number items via the list settings, and switch organizational unit at the top.
Tap a serial-number item to open it.
On the serial-number item you see its details, including linked address and attachments. You can:
Edit the display name.
Edit the sales price.
Serial-number items are typically created when the item is received (see the Deliveries article) or sold.
Which details and fields are shown follows your setup in Sapera.