Is a nested ACK on EnsLib.HL7.Operation.HTTPOperation response expected
I have setup a HL7 Operation using the HTTP adapter, and I'm getting what seems to me as an unusual response. When sending a sample message to the operation, I am getting a nested ACK. For example:
MSA|AA|RWSD7V5iuEC5F6zscDWz|HTTP ACK 'HTTP/1.1 200 OK' : MSH|^~\&|yyy|yyyy|xxx|xxx|20220923080633||ACK^A01|1663916793965||2.3||||||
MSA|CR|RWSD7V5iuEC5F6zscDWz|Error Message Goes Here.
The adapter is spotting the positive ACK in the first part of the message, but the second part is the actual response I need the adapter to be evaluating.
So my question is:
- Is this nesting a common way of receiving HL7 ACKs via a HTTP adapter?
- Has anyone faced this before and have any advice to give?
ETA - the supplier of the receiving system doesn't believe the first ACK is from them. Is this something being added by the adapter in Ensemble?