Hi Nitin,
Please add the following code in do_finish_input.
DATA : lv_message_service TYPE REF TO cl_bsp_wd_message_service.
global_messages->delete_message( condition = cl_bsp_wd_view_controller=>co_mandatory_field_empty ).
lv_message_service = me->view_manager->get_message_service( ).
CALL METHOD lv_message_service->remove_fields_state
EXPORTING
iv_page_id = me->component_id.
Thanks,
Faisal