How to identify the error

Driver scans a barcode and it is not recognized.

What it means

This may be due to the bar code having extra characters, the most common example being a vertical bar character “|” appended to the front of the barcode

In addition, some rail tags have extra characters, different from the example above. One example is a barcode having “BAY-“ before the 17-character VIN.

What to do about it

Build 408 of the app ignores these extra characters, so the best course is to have the driver download the latest version of the app.
If for some reason they are unable to download the new version of the app right away, drivers can work around it by either selecting the barcode from the list or entering it manually instead of scanning.