To track revision dates, the import process must use a message template configured using the $$DOCREVDATE value.
Note:
If the incoming message contains a blank or invalid date for the $$DOCREVDATE value, then the document is not imported. The HL7 Listener displays an error and sends the configured acknowledgment code1 to the sender.
To map $$DOCREVDATE to a message template:
1 You can change the acknowledgment code for document import failures under Medical | HL7 | Settings.