VBA in OpenCities Map CONNECT posting handler callback

Code : VBA.

Bentley : OpenCities Map CONNECT Edition Update 6 - Version 10.06.01.06 (64bits)

BD : Oracle 11g

BD Client : Oracle 12c

Hi, I want to post my feature to Oracle.  I found "GDI POST FENCE ..." but i have no callback for my code VBA when an Oracle error occurs.

I want to list errors or perform some other function when the post is successful.

How can i do that in VBA?

Thanks

Mario