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This structure represents the unique key fields associated with identifying a billing cycle. Billing Cycles are used to determine when and how often clients should be invoiced. Each client and engagement can be assigned a billing cycle, and users can choose to create invoices only for engagements with a particular billing cycle. Invoices Billing cycles can be identified by BillingCycleName or BillingCycleUid. When specifying a PwsBillingCycleRef as an input to a web service, you may specify one or both the BillingCycleName and/or BillingCycleUid. However, if you do specify both, they must both refer to the same billing cycle or the billing cycle reference will not be considered valid. When a PwsBillingCycleRef is returned in the response to a web service, both the BillingCycleName and BillingCycleUid will be populated, and guaranteed to refer to a single billing cycle.
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