Text transfer to accounting document while using T-code MIRO

Hi All,

I got problem which is which is about T-code MIRO.

After click on the "SAVE" button, I'd like to transfer the TEXT value which on the "Basic Data" tab to the line item of FI document (INVFO-SGTXT -> BSEG-SGTXT). I tried to use Substitution and user-exit to do the change but failed.

Someone say we can use enhancement to get the text transferred, but I have no idea which enhancement is the proper one I can use.

Anyone can help me on this? Thanks a lot!!