The Lab

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  • If the Client is expecting a sequence number higher than the FH's next-to-be-assigned msgSeqNum, then this is an unrecoverable error and the FH will abort the session with a Logout message.

    Tip
    The Customer should contact MF support Support to agree the correct resolution actions.


  • Otherwise the FH will issue a LogonResponse message containing the next MsgSeqNum[34] value that it expects to receive from the client.
  • If the Client is expecting a sequence number lower than the FH's next-to-be-assigned msgSeqNum[34], then the message gap is resolved by the FH with SequenceResetGapFill messages and the resending of persisted messages as necessary.

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