This structure is used to uniquely identify a Client. Clients can be identified by ClientNumber or ClientUid. When specifying a PwsClientRef as an input to a web service, you may specify one or both the ClientUid and ClientNumber. However, if you do specify both , they must both refer to the same Client or the Client Reference will not be considered valid. When a PwsClientRef is returned in the response to a web service, both the ClientUid and ClientNumber will be populated, and guaranteed to refer to a single Client.
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