Classic Scnerio, the XML is not generated in SRM

Hi,

I am working in SRM 7.0 classic Scenerio,

The SC created are transfer as XML to ECC system. Since we maintained the system as 'ERP 5.0' in the back end system settings.

I created a SC and back end PO is created through SOCO screen by assigning the source of supply. The SC is in status 'Item In transfer' (I1111), but there is no XML generated. I have checked the same in SXI_MONITOR transaction. There is no error log in RZ20 also.

FYI-  the PI system is up and running.

Kindly tell me , why the XML is not generated???

Thanks in advance