Hi All,
I have a custom requirement in which I have to add the Form part in the Work breakdown structure form.

I want to link PSAActivityEstimates on the basis of its relation to InventTable.
As for the FormPart, it is a query-based form part, has InventTable as the primary data source. The problem is, I am not getting the "Data source relation" drop-down to be populated. I have tried to see the standard implementation and can not understand the reason why I am not able to get it populated.
If I am doing something wrong in it, then do point it out.
Thanks in advance.