Test Messages

Message is “Test Request” (35=1)

OpenYieldSubscriberMDOBTRDCRQ

Tag	Name	Required	Notes
112	`TestReqID`	Required	Must be echoed in the Heartbeat reply

If OpenYield detects no traffic on a connection, it sends a Test Request (35=1). Subscribers must reply with a Heartbeat (35=0) echoing the same TestReqID. If no reply is received, OpenYield treats the connection as disconnected and pulls all open orders from the market.

OpenYield sends:

8=FIX.4.4 9=76 35=1 34=70 49=OPENYIELD-TR 52=20230123-21:10:43.238 56=NATIONAL-TR 112=TEST 10=188

Subscriber replies with a Heartbeat:

8=FIX.4.4 9=75 35=0 34=4 49=NATIONAL-TR 52=20230123-21:10:47.684 56=OPENYIELD-TR 112=TEST 10=144