deep entity - Odata using SEGW

Hi Guys,

I was trying to create deep entity, I have done with all the steps like associations and navigations and even association sets using segw, but I am able to create associations using manually like creating MPC and DPC classes externally.

But when I tried through SEGW, I am able to see metadata, but when I am using JSON object as request body, It is not recognizing Item entityset type as entity, it is simply taking as property.

Please do provide me some input on this.I have gone through blogs too.

Thanks