"Application instructions" refers to specific steps or guidelines that need to be followed when applying for something. It tells you how to properly complete and submit an application. Full definition
You'd think this would be an easy box to check off, but a surprising number of candidates don't follow application instructions. (businessinsider.com)
Guidelines and application instructions for emergency and disaster response and preparation can be found on this page. (aspcapro.org)
Job seekers need to take responsibility for creating a great resume, following job application instructions, and finding resources to help them in their job search. (flexjobs.com)