Prerequisites for Using Constituent Web Services
Before using constituent web services, your application server must be configured such that the publish/subscribe servers are running, and domains and gateways are configured.
In addition, in order to use the PERSON_DATA queue for web services, configure the Queue Definitions page so that the PERSON_DATA Queue Status is set to Run.
You must also configure the integration gateway using Integration Broker.
See PeopleTools: Integration Broker.