Whenever an applicant starts a submission, the new submission is given a unique ID. By default, it starts off as a three-digit number starting at 001. There is some flexibility in how this application code appears.
Start by clicking System Settings in the left side navigation and then click Numbering and Dates.
Randomize
You can pseudo-randomize the code by clicking Insert Variable and insert {Random, 4} before {ApplicationId, 3}. This will generate a random 4 digit number before the actual ID so that it appears random to the end users.
Category Code
Also most common is adding a category code to the ID. Insert Variable {CategoryCode} and put a dash between {CategoryCode} and {ApplicationId, 3}.
This is how the codes would then appear in your list of submissions.
