Correlation in HL7 Document Plugin
Control Number is used to correlate between Busingess message and its Acknowledgement. Control Number can be either generated by B2B or by Back End application such as BPEL. You can delegate the Control Number generation to B2B byusing the macro #ControlNumber# for e.g
<MSH.10>#ControlNumber#</MSH.10>
How Correlation works
MSH.10 of any business message contains a unique value (i.e. Control Number) that identifies a message. The receiving system sends this unique ID back to the sending system in the MSA.02 segment of ACK message. The sending application reads MSA.02 and correlates with business message.
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