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As your CORE HL7 Sender profiles are running they will automatically create Traffic Log files in the CSTraffic sub-folder of the Data Folder defined in your Sender Profile(s).


Traffic Log files will be named Traffic.<ID>.<DateStamp>.log and are created daily. If your profile does not deliver any HL7 messages during that day then no Traffic Log file will be created.


<ID> is the ID Field defined in your Sender Profile(s)

<DateStamp> will be the current system date.


Traffic Log files are purged according to the File Maintenance settings in your Global Settings.


The Traffic log is an incredible troubleshooting or auditing resource that you should take advantage of when needed.


Have you ever wondered how many HL7 messages your CORE HL7 Sender profile sent over the course of a given day? Just open the Traffic log for that day and count the lines in the file.


Has a trading partner ever asked if you sent a HL7 message? Or claimed that they never received particular message. You can tell in the Traffic log.


Click to Enlarge

Sample Traffic Log



The Traffic log is a TAB delimited file created daily. In examining the sample log file in the screen-shot above we can tell that on this particular day my CORE HL7 Sender profile received 703 HL7 messages. I can even take a deeper dive into the data and get more information. The data fields in the traffic log:


1.Time Stamp. Down to the millisecond of when the message was actually delivered. It's not a Date-Time stamp because the files are created daily so you always know the date. If the message was delivered multiple times (see field 12) it will be the time stamp for the final delivery.

2.Message Control ID. This is MSH (10.1) from the message received.

3.Message Type. MSH (9.1)

4.Message Event. MSH (9.2)

5.Sending Application. MSH (3.1)

6.Sending Facility. MSH (4.1)

7.Receiving Application. MSH (5.1)

8.Receiving Facility. MSH (6.1)

9.HL7 Message Date. MSH (7.1)

10. Test/Prod Flag. MSH (11.1)

11. HL7 Version. MSH (12.1)

12. Number of Attempts. This will be the number of times that the CORE HL7 Sender actually delivered the HL7 Message with no transmission errors.

13. HL7 ACK Type. This is not from the message data but is the type of HL7 ACK which was returned by the destination HL7 Listener.


If you are sending messages out and not getting HL7 Acknowledgements back.


Click to Enlarge

Sample Traffic Log


If the destination listener does not return back HL7 Acknowledgements your traffic log(s) could look like this. As you can see from the screen-shot above the last message was successfully delivered to the destination a total of 3 times before the CORE HL7 Sender gave up and moved the message to the CSUnAcknowledged sub-folder of the data folder, entered the traffic log entry, and moved on to the next message send operation. The Wait for Acknowledgement and Resend behavior is defined by you in Section 3 of your Sender Profile(s).



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