hola, yo he hecho lo siguiente:
cuando llamas al alv, te creas un párrafo de cabecera:
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
EXPORTING
i_callback_program = repname
i_callback_top_of_page = 'TOP_OF_PAGE'
i_structure_name = 'I_INFORME'
i_grid_title =
'Facturas Acreedores Contabilizadas'
is_layout = layout
it_fieldcat = fieldtab
i_default = 'X'
i_save = g_save
it_events = events[]
TABLES
t_outtab = i_informe
EXCEPTIONS
program_error = 1
OTHERS = 2.
Y en este párrafo utilizas la función:
**---------------------------------------------------------------------*
** FORM TOP_OF_PAGE *
**---------------------------------------------------------------------*
FORM top_of_page.
CALL FUNCTION 'REUSE_ALV_COMMENTARY_WRITE'
EXPORTING
i_logo = logo
ENDFORM.
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