Invalid Parse for DDE formulas

[ThunderFrame]

=Sdemo123|tik!'id1?req?AAPL_STK_SMART_USD_~/'

Error at position 1:15
Syntax error, expected: CellToken, NameToken, NamedRangeCombinationToken, VRangeToken, HRangeToken, RefErrorToken, UDFToken, [, EnclosedInBracketsToken