I have the following xml message to update purchase orders propetries (in
this case status)

<?xml version="1.0" encoding="utf-8" ?>
- <PurchaseOrderUpdates>
<PurchaseOrder OrderGroupId="a5aa5675-6efb-4270-af93-3e64b8b1ab2a"
PropertyName="Status" PropertyValue="UpdatedOrder" />
<PurchaseOrder OrderGroupId="d93d1655-5a25-4b14-b222-e85d6f9c89be"
PropertyName="Status" PropertyValue="UpdatedOrder" />
</PurchaseOrderUpdates>

but Commerce Server Orders Send Adapter raise an error:

The message body received by the send adapter is not valid for the
 CommerceServerOrdersUpdateOrderPropertie
s API call.  Message ID:
95c159ab-a627-495e-9878-1d8b8afb9de3.  Detail: Unknown XML node:
Name='PurchaseOrder'

It is strange because documentation said that OrderUpdate schema is Adapter
Schema so it is dependent only on CS Adapter so if CS Adapter version
changing we have to change the OrderUpdate schema.

Updating StarterSite's purchase orders performed correctly, but our site is
not.

Any ideas are appreciated...

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