Simulation source list of PIR

[insafiby]

Hello,

We created a PIR of a plant as a vendor and then generated a source list.

In the simulation of source list  PIR field is empty 

whereas in the source of supply simulation , PIR number appears

So now when I generate a PR via MRP, I do get my supplier ( as I havae MRP=1) but I don't have the PIR shown in my purchase requisition and data from PIR is retrieved ( planned delivery time,..)

When I convert PR to PO, PIR is shown, but I still want to understand this behavior. Why doesn't PIR number appear in the source list?

Thank you , 

MM Purchasing Sourcing and Procurement - Purchase Contract Management#purchase in