The Account Nickname field will help you identify your accounts on the report. Examples of account nicknames include:  
Household Checking, <a href="javascript:glink('share certificate')">Share Certificate</a>   #1, John’s Trust, Mary’s Roth IRA. 
If you want to use your account number as a reference, you do NOT need to enter your full account number, you can just use the last four digits (e.g., Acct #2233).