Changing/Displaying Notas Fiscais 
To change a nota fiscal, run transaction J1B2N; to display, transaction J1B3N.
Enter the internal nota fiscal document number on the initial screen. If you do not know it, you can choose the input help and search by:
· Nota fiscal number
· Original SD document
· Original Invoice Verification document (not used)
· Original material document
· Original Logistics Invoice Verification document

If you change or display a nota fiscal that was generated automatically in MM or SD, you can view the original document (such as the billing or material document) from the item level, by choosing the Source pushbutton.