Report RFEBKA00 to import Swift MT940- How is Bseg updated?

Hi All,

I have a requirement to change the item text field BSEG-SGTXT of an incoming bankstatement. The SGTXT field has to be the second line of field :61:. I couldn't find where the SGTXT field is being updated to the database inspite of extensive debugging of the program RFEBKA00. Can anyone tell me how I can set the field BSEG-SGTXT as per my requirement? Is there any user-exit, BTE, BADI, etc that might help me? If yes, please tell me how it needs to be implemented.

Regards,

Smrithy