Oracle APEX info message and error message from PL/SQL

Oracle APEX info message and error message from PL/SQL

Info message
pex_application.g_print_success_message := '<span style="color:green">'|| result ||'</span>';


Error message

DECLARE
 sMsg VARCHAR2(40) := 'aaa';
BEGIN
  apex_error.add_error (
    p_message          => sMsg,
    p_display_location => apex_error.c_inline_in_notification );
END;