Using Territory Gateway Filters
A filter string specifies criteria for the contents of a document. The Broker uses the filter string to determine which documents match your criteria and allows only those documents that match the filter string to pass through the territory gateway.
You apply a filter string to document types that a territory gateway can receive from a remote territory.
To place a filter on a document type
1. In My webMethods: Messaging > Broker Territories > Territory Gateways.
2. In the Territory Gateways List, locate the gateway that you want to configure and click 
Details. 3. Click the Shared Document Types tab.
4. In the list of the document types that the territory gateway is permitted to receive, click 
Edit Filter for the document type that you want to filter. 5. In the Filter text box, type a filter string that specifies the criteria that identifies which documents this territory gateway can forward to the remote territory. For information about specifying a filter string, see
Filtering Documents. 6. Click OK.
The filter appears in the Filter column in the Allow Receive table.