Thank you so much. I tried the steps that you have mentioned above and I was able to successfully add only the FICA portion. I talked further to the payroll team and they did not provide clear directions. I learned that as an employee, I should be following the W2 and its up to the employer to rectify their mistakes - which could mean that they will pay any FICA that needs to be paid and they can deduct my portion of FICA from my future payrolls according to some IRS provisions. I went this route instead of complicating things to comply with IRS deadline of tax filing.
