Problem generating IS Service from WSDL

I tried imporing WSDL (Wm 6.5 and 7.1.2) to create IS Servic. Everything generated successfully but document type missing some tags which I can see in WSDL file, I have attached WSDL for you to test

Appreciate your help,
MI_B2B_Invoice_Out_A.wsdl (41.5 KB)

Hi Faisal.

I know its been so long but were you able to fix this issue. I am having same problem, I have a WSDL with multiple schema and IS document is missing the fields after I import it into wm. Please reply