Finding username based on Release Code for a PO

Hi Gurus,

I have a requirement in which, I have to fetch the SY-UNAME based on any of the following data:

Release Strategy(FRGGR)

Release Group(FRGSX)

Release Code(FRGSX)

The screenshot for the same is as follow:

As shown in the above screen shot, How can I find the SY-Uname for the user "Mohit Malhotra".

Please suggest.

Thanks in advance.

Sanjeev

ABAPer