Reconciliation of Purchasing with GL

Hello,

I have completed P2P cycle for reconciliation of purchasing with GL in test environment. During this cycle i have run concurrent programmes create accounting - Recieving and create accounting -  cost management from purchasing responsibility.

* Encumbrance is activated at PO level.

As i know about the P2P accounting cycle, there is no accounting entries generated at PO level therefore, is it necessary to run these two programes from purchasing  or i have to run these from inventory and payables (for receipt and invoice accounting generation).

P2P Accounting Events are defined below:

1 Inventory Item

2. Expense Account

Kindly, provide me your views on this so that i can be more clear about reconciling and accounting of Purchasing.