Based on the role of the providers in the project data flows, and the data to be transferred in the business flow, provider-specific parameters display as either source or destination application parameters in the Business Flow wizard.
Gateway developers and Gateway administrators can set the default behavior of these parameters in a business flow by specifying the Attribute for each parameter as any of the following values: Hidden, Optional, Read-only, or Required.
Note: Data identified by each parameter is processed by a flow step of the business flow. For more information on flow steps, see Executing a Business Flow. All values specified in the filter parameters will be used in the Load step of the flow for loading data from the providers designated as the source or the destination.