Generate History

Hi all,

i will be very happy if iget a help from you, the tema is ABAP WD, i have created 2 field, one for Notes and the other one for history, and when writing my text in the notes field, after klicking save "Button" it should be saved, and the history must be generated with date and user and cient, , my text is already saved in a DB table, but next step, i need help for it,

Kind regards