Confirmation Control Process Flow

Question

My Dear Gurus,
I want to know the actual confirmation control process in material manangement. Becoz of one of my client having the following scenerios.
PO is created only by PR reference with confirmation tab enabling in po. Once he created the PO again he come back to change mode in PO and enable the confimation control (0001) and the confirmation category as AB.
Once the vendor is received the PO and the delivery date is accepted by vendor and he manually over phone tell the final delivery date.
So our client wants to update the final delivery date given by vendor.
My question is either he need to do *the inbound delivery through VL31N* then only do the MIGO (GR) or directly without doing VL31N do the MIGO transaction.
Kindly xplain process flow for the above case.
Regards,
Vimal

Answer 1

You can define and do the required confirmation control key under
SPRO -- > Materials Management --> Purchasing --> Confirmation .
Confirmation control Key "AB"  is  refers to Order Acknowledgement.
Based on configuration under " Set up Confirmation Control " system decides whether only Order Acknowledgement is required or subsequent operation is required prior to GR.
Suppose " Inbound Delivery is required" then one need to do Inbound delivery under VL31N.
Then GR. You can remove the inbound delivery steps by making blank key  under Confirmation tab.