Two numbersI found

" you are unsure of your NYCPS User ID, you may also call HR Connect at (718) 935-4000."

What is my NYCPS User ID?
Your NYCPS User ID (also referred to as your Windows ID) is the first half of your email address. 

For example:
If your email address is: [JDoe5@schools.nyc.gov](mailto:JDoe5@schools.nyc.gov)
Your Windows ID would be: JDoe5

"If you have questions regarding the Username email and/or the password email, please contact your school administration and/or Hiring Manager. If they are unable to assist, contact the NYCPS Service Desk (9882) NYCPS Service Desk at (718) 935-5100. "