If no exception occurs, validateHL7Message() is called, which validates the message to determine whether to ACK or NAK the message. Other helper methods are also called to validate the HL7 V3 message.
If the HL7 V3 message does not pass validation, the Collaboration calls makeNak() and sendHL7Nak() to create and send the NAK to the external. The HL7 V3 message, with the NAK, is archived to the error queue. If the number of consecutive NAKs sent surpasses the maximum number of retries, the associated recourse action is taken.
If the HL7 V3 message passes validation, the Collaboration calls makeAck() and sendHL7Ack() to create and send the ACK to the external.
After the ACK is sent, the HL7 V3 message and the ACK are journaled to the JMS queue journal destination. If the message fails to journal the associated recourse action is taken.