Invalid roll number #9
Description
@hitensam What is a roll number?
Once installed, the app just says error invalid roll number, the code doesn't seem to indicate or suggest or offer what a roll number is.
Where is it documented what a roll number is and what a 'valid roll number' is?
I've googled a few options but the closest I got was perhaps the ISBN number which
When I try a sample ISBN number of '978-3-16-148410-0' it gives a second message.
