Policy assertions are combined into Policies. A policy specifies exactly which assertions must be satisfied. Our example requires each of the custom policies described above to be satisfied, and it allows either US dollars or euros to be used as currency for all applicable messages.
Policy Expression (01) <wsp:Policy (02) xml:base="http://ex.mspress.microsoft.com/policy" wsu:Id="ORDER"> (03) <wsp:All> (04) <msp:EndpointMaintenanceSchedule> (05) <msp:Unavailable day="Sunday" start="0000" end="0200"/> (06) </msp:EndpointMaintenanceSchedule> (07) <msp:OrderPolicy> (08) <msp:DeliveryDelay message="msp:PurchaseOrder" msp:maximum="30"/> (09) </msp:OrderPolicy> (10) <wsp:ExactlyOne> (11) <msp:Currency>EUR</msp:Currency> (12) <msp:Currency>USD</msp:Currency> (13) <wsp:ExactlyOne> (14) </wsp:All> (15) </wsp:Policy>