Testcase to check if there are correct relations between PMM_PurchaseCandidates and their C_Orders.
Create a PMM_PurchaseCandidate for bpartner G000X, P0001, with the WebUI (set a qty so you can order sev. TUs!)
Open the PMM_PurchaseCandidate, search for bpartner G000X, P0001, and date of test
Set a qty for Quantity to order (TU), but not for the full qty of product
Create the purchase order
In the PMM_PurchaseCandidate, click Zoom Across
=> the purchase order you created is displayed
=> the PMM_PurchaseCandidate is displayed
Zoom back into the PMM_PurchaseCandidate
Create 2 more purchase orders, and then click Zoom Across again
Zoom into the purchase orders
Create another PMM_PurchaseCandidate for bpartner G000X, P0001, with the WebUI
Open this PMM_PurchaseCandidate, and change the packing instruction or price
Set a qty for Quantity to order (TU) in this PMM_PurchaseCandidate, and also for the older one
Create the purchase order, so that it includes both PMM_PurchaseCandidates
Zoom into the purchase order, and click Zoom Across there
=> the two PMM_PurchaseCandidate are displayed (=> Procurement candidates #2)