# import

The `import` property allows messages published by an external system to be received by a EMS destination (a topic or a queue), as long as the transport to the external system is configured.

You can set `import` using the form:

       import="list"

where list is one or more transport names, as specified by the [NAME] ids in the transports.conf file. Multiple transport names in the list are separated by commas. For example:

       import="RV1,RV2"

You can configure transports for TIBCO FTL, TIBCO SmartSockets, or TIBCO Rendezvous reliable and certified messaging protocols. You can specify the name of one or more transports of the same type in the import property.

You must purchase, install, and configure the external system (for example, Rendezvous) before configuring topics with the import property. Also, you must configure the communication parameters to the external system by creating a named transport in the transports.conf file.

For complete details about external message services, see:

- Interoperation with TIBCO FTL
- Interoperation with TIBCO Rendezvous
- Interoperation with TIBCO SmartSockets

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