Save in VT02N .
I was write this code in include 'ZXV56U18' :
READ TABLE i_xvttk_tab INTO ls_xvttk INDEX 1.
IMPORT ls_voyage-voyage FROM MEMORY ID 'SIG'.
MOVE ls_voyage-voyage TO ls_xvttk-signi.
MODIFY i_xvttk_tab FROM ls_xvttk INDEX 1 TRANSPORTING signi .
When i push my custom button in VT02N and go to my transaction , i transfer value to fields "VTTK-SIGNI"
with export command, and after this , in user exit "EXIT_SAPMV56A_001" i was update this value with import command
like i show below.
When i return to vt02n i see the new value on the screen ( vttk-signi(old) = 'AAA'
vttk-signi(new) = 'BBB' ) , but when i push on 'SAVE' button i get this message:
"Saving not necessary: no changes were made".
Why this is happend which i change the value of this fields ?
Thanks for the help.