UpGrad3

Hello, Newbie here, dealing with the same issue. Need to increase the auto generated username and password character length from 10 to 12 whenever a new order is placed (hope this makes sense). Again, I am very new to all of this and don't really understand the above solution. Was wondering if anyone who is kind enough (and patient) could help me understand the above. If there are step by step instructions available, I wouldn't mind trying on my own. Appreciate your time. Thank you.