Your User ID is ARK + your 5 digit employee number. If your employee number is less than 5 numbers, please add zeros at the beginning of your number to make it 5 digits.
Examples:
Employee # 1
User ID: ARK00001
Employee # 11
User ID: ARK00011
Employee # 111
User ID: ARK00111
Employee # 1111
User ID: ARK01111