Camera scanning is where the camera of a mobile phone is used to scan barcodes. Typically it is used to scan 2D barcodes, called QR codes. It can also be used to scan 1D barcodes, of the type used to identify products. It can be done, but not very well. With practice, it can be done reliably, but slowly. But the main problem is with the workflow. The user is distracted, by having to focus on the barcode that is being scanned.
In practice, users always opt for Bluetooth scanning. I see the camera scanning of 1D barcodes as nothing more than a neat party trick, and I intend to remove it from future releases of the Android app. It was withdrawn from the iOS app some time ago, due to lack of support for the corresponding library.
The Customer Map feature has finally been removed from the Android app.
It was always a vanity project, that was technically ingenious, but hardly ever worked. It was difficult for the user to set up, and it kept getting clobbered by updates from Google, which was anxious to monetise its technologies.
The guidebook and user manual will be updated in due course. At the moment only the menus have been patched, in case anyone is actually using the feature.