MM-SUS Scenario: Order confirmed but No Order Ack triggered to XI

Hi,

We have configued ECC(MM)-XI-SRM(SUS) for Classic scenario.

When new PO is being created in ECC, the same is getting posted in SRM and we could see in the SUS portal. Upon Order Confirmation, the Order is moved from <b>"New/In Process"to "Confirmed" orders</b>. But no message(PurchaseOrderConfirmation_out) is being sent out of SRM system.

How will this message get triggered?

Regards,

Siva