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https://issues.apache.org/jira/browse/CAMEL-22421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18021358#comment-18021358
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Kieu edited comment on CAMEL-22421 at 9/19/25 10:54 AM:
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[-https://github.com/Talend/apache-camel/pull/144-]
was (Author: JIRAUSER310969):
https://github.com/Talend/apache-camel/pull/144
> camel-mllp - HL7 version 2.5 requires ACK in MSH-9.3 in acknowledgment
> ----------------------------------------------------------------------
>
> Key: CAMEL-22421
> URL: https://issues.apache.org/jira/browse/CAMEL-22421
> Project: Camel
> Issue Type: Improvement
> Components: camel-mllp
> Reporter: Kieu
> Priority: Minor
> Fix For: 4.x
>
>
> As of HL7 v2.3.1 MSH-9.3 has been introduced as an optional component, and
> since v2.5 it is a required one, which means that it is also needed in the
> acknowledgment message MSH part.
> [https://hl7-definition.caristix.com/v2/HL7v2.5/Fields/MSH.9]
> When the camel-mllp consumes an HL7 message, it is currently sending back
> |ACK^[...]| in MSH-9.1 (and the rest in the MSH-9.2).
> For it to be compatible with HL7 v2.5, it needs to return |ACK^[...]^ACK|.
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