data gv_message type string.
MESSAGE ID sy-msgid TYPE sy-msgty
NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4
INTO gv_message .
text1 = gv_message(50). " in this case is a text on a dialog screen 104
text2 = gv_message+50. " in this case is a text on a dialog screen 104
CALL SCREEN 104 STARTING AT 2 2 ENDING AT 48 6.