Select the Wayne State University school code - 002329 - when filing the FAFSA or completing promissory notes. Federal Direct Loan Master Promissory Notes.All student loan borrowers must sign a Master Promissory Note before they can receive loan funding. You can sign your Master Promissory Note here. Select Wayne State University as your school. As a Federal Direct Loan borrower, you must sign a Master Promissory Note (MPN) before your loan can be disbursed. You must accept loans if you want them and complete entrance loan counseling and promissory note requirements. If the loan is accepted, the student must complete Entrance Counseling and sign a Master Promissory Note. Complete your Master Promissory Note (MPN) to acknowledge that you understand the terms and conditions of your federal student loans.