SequenceReset_Reset reception of NewSeqNum descent

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Imported from previous forum

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How should engine be served when SequenceReset_Reset to which PossDupFlag=Y and NewSeqNum are descending is received? By our present specification, connection cutting of the time of SequenceReset_Reset reception of NewSeqNum descent is carried out regardless of the setting value of PossDupFlag.

Please tell me.

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This is documented as Test Case "11 c" in "FIX Session-level Test Cases and Expected Behaviors". You can find this in FIX 4.3 Volume 2 or as a standalone document within "FPL Organization", "Global Technical Committee", "Archive".

> How should engine be served when SequenceReset_Reset to which PossDupFlag=Y and NewSeqNum are descending is received? By our present specification, connection cutting of the time of SequenceReset_Reset reception of NewSeqNum descent is carried out regardless of the setting value of PossDupFlag.
>
> Please tell me.
>

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Thank you for a reply.
By this pattern, it turns out that Reject should be transmitted.
Please let me ask two continuously.
‡@Why is reference with this pattern "invalid MsgType"?
‡AIs interpretation that PossDupFlag=YorN does not affect NewSeqNum right?

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Session-level test case 11 c currently states:

  1. Send Reject (session-level) message referencing invalid MsgType (>= FIX 4.2: SessionRejectReason = "Value is incorrect (out of range) for this tag")

You identified a typographical error. “referencing invalid MsgType” should be “referencing NewSeqNo less than expected”. We should correct this in an Errata. All this is really saying is that you should identify the reason for the session-level Reject message within that message’s Text field.

PossDupFlag handling is associated with MsgSeqNum and whether or not the message itself should be accepted, ignored, or the session terminated. PossDupFlag and NewSeqNo are not directly related.

> Thank you for a reply.
> By this pattern, it turns out that Reject should be transmitted.
> Please let me ask two continuously.
> ‡@Why is reference with this pattern "invalid MsgType"?
> ‡AIs interpretation that PossDupFlag=YorN does not affect NewSeqNum right?
>
>

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Thank you for a reply.
I may need your help well from now on.