Macro- for saving $PRP:"..." in dxf (At sketch)

Hi! Macro not saving  "\$PRP:""Part ID""" in dxf (

https://www.dropbox.com/s/z2mygaa0umdzrxh/example.jpg?dl=0

what could it be?

Kind regards,

Konstantin Mir 'I am new in API and only able to record some simple macros

SolidworksSheet Metal