update values in ALV after CALL TRANSACTION

Hi,

i´ve developed an ALV that displays data. The user then selects several lines and processes a CALL TRANSACTION.

If there is a message during the CALL TRANSACTION a new ALV is displayed showing all the messages.

The question is as follows:

from this second ALV (the one that displays the messages)

if i click BACK button to return to the first ALV, How can i update my ALV with the new values?

Best regards.