A record notifying you of the direct deposit of your paycheck. Includes your earnings statement. If you receive your pay by direct deposit, this is called an advice number. If you receive a check, this is the check number.
Picture above is of an advice of deposit.
The amount direct deposited into your account. Your identifying number and your name as they appear in the University of Washington's Payroll System. If incorrect, please contact your departmental payroll coordinator. Last day of the pay period for which this paycheck is issued. The unit number is also known as the payroll unit code.