There are list types in the procedure where you can see both material purchase, stock order, and subcontracts.
The procedure Flow Analysis - Purchase in G4 has been replaced with a list type in the Order List – Purchase procedure in G5 called Check delivery times. In the settings for that list type there are two fields where you can simulate an optional number of days delay for a purchase order; one field for confirmed order rows and one field for unconfirmed rows. The List tab is divided into two sections: purchase order rows and its consumers, so if you click a purchase order row you can see where it is consumed. Two rows are shown for each manufacturing order in the section showing consumers. You can see one date for when the material should be consumed and another date for when the manufacturing order should be finished.