I am Drupal beginner. I have created one webform with some fields (name, college, branch, address, email, contact number etc.). And when this form gets submitted I need to generate a unique registration number based on the selected college code and a serial number).
I also installed Webform Rules module but I don't understand how to achieve that.
Can anyone please help me to generate unique serial ID based on a field value during the Webform submission?