We have just begun submitting our STP files via the ClickSuper Gateway. I am the only holder of an AusKey in our business and have always submitted our payment summary file (I'm the Payroll Manager). There are two other payroll employees that will need to upload STP via ClickSuper since it will now be almost weekly. Do they have to have an AusKey as well? What type of proof does the ATO need that they are authorised to upload besides the file declaration?