Order Tracking number

Hi can anyone PLEASE help me how to generate a tracking number like the one we have to track in order.

The code below generates numbers but i need something with Alphabets too ( example in screenshot )

unixCode();
function unixCode (){
var timeStamp = Math.floor(Date.now()/ 1000 );
$w( ‘#input21’ ).value = timeStamp.toString();
}

Thank you so much

This is not really a Corvid issue, however, you can do something like this:

let code = Math.random().toString(36).substr(2, 10);

An Internet search will result in a pile of other options.

Thank you so much. I appreciate it!