Hello, I have a different structure in mind. First, I will put custom codes in a cvs file. Then, if the student solves the exam I have determined, the system will take a special code in this CVS file and send it to the student by e-mail or display it on the screen as a pop-up. The system will use the code it uses in cvs only once. It will not send the same code. How can I do that. It seems very doable and yet it seems like it can't be done. Thanks in advance for your help.