There are two parts to keeping track of your required trainings and documentation in Setworks: Tasks and Expiration Fields.
Tasks are the color-coded reminders that you see on your home page. Except for Tasks With Forms, the only thing you need to do with them is mark them complete after you've completed the training or submitted the documentation. You are NOT locked out by overdue tasks, but until you mark them complete they won't be reset for the next due date.
Expiration fields are found on your staff profile. Whatever is in the Expiration Date column is the date you will be locked out on for that item. This should be the same as the due date of your task, but they are not automatically linked together. If you notice that there's an error on one or the other, please contact the training team.
See the images below for more info or click here for a video version.