Structure | Sample Message | Related Messages DescriptionThe Test Request <1> message forces a heartbeat from the opposing application. The Test Request <1> message checks sequence numbers or verifies communication line status. The opposite application responds to the Test Request <1> with a Heartbeat <0> containing the TestReqID <112>. The TestReqID <112> verifies that the opposite application is generating the heartbeat as the result of Test Request <1> and not a normal timeout. The opposite application includes the TestReqID <112> in the resulting Heartbeat <0>. Any string can be used as the TestReqID <112> (one suggestion is to use a timestamp string). Structure
Sample MessageThe '^' character is used to represent SOH character. 8=FIX.4.1^9=72^35=1^49=BuySide^56=SellSide^34=2^52=20190605-15:29:22.222^112=TestReqID^10=199^
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