Sequence Reset
- FIX Specification
MESSAGE BODY
header  required
 MsgType 
4 123 - SequenceReset boolean required
Possible values: [
true,  false]  Indicates that the Sequence Reset (4) message is replacing administrative or application messages which will not be resent.
- Y: Gap Fill message, MsgSeqNum field valid
- N: Sequence Reset, ignore MsgSeqNum
36 - NewSeqNo integer required
 New sequence number.  
trailer  required