Configure a Mirth Connect channel to route inbound HL7v2 messages to multiple destinations

Steps

1. In the Mirth Connect Administrator, create a new channel and configure the source connector as a TCP Listener on your designated MLLP port; set the mode to MLLP and configure the maximum connections appropriate for your expected message volume
2. In the source transformer, add JavaScript or drag-and-drop transformer steps to inspect MSH-9 (message type) and set a channel map variable (e.g., msg_type) to drive destination routing
3. Add multiple destination connectors — for each target system, add a TCP Sender destination configured with that system's MLLP host and port; set each destination's filter to check the channel map variable so only matching message types are forwarded to each destination
4. Configure the destination transformers for any field-level mapping required — use Mirth's JavaScript transformer with the msg object to access and modify HL7v2 segment fields before forwarding
5. Set the channel's message storage settings balancing audit requirements against database performance; for high-volume channels consider storing only metadata and errors rather than full message content
6. Deploy the channel and validate with test messages: use Mirth's Send Message feature in the channel dashboard to inject a test HL7v2 message and inspect the message detail view to confirm correct routing and transformation