Hi Mark,
Thanks for your reply, I am only getting problem in entering values of characteristics of property tree, I am able to create property tree and specification by executing that BAPI directly. So I just want to confirm that you are suggesting that if I call that BAPI through code this issue will get resolve but it is not possible by direct execution of BAPI_BUS1077_CREATE. Direct execution will only create specification and property tree.
Regards
Kapil