Tag 123
GapFillFlag
Abbreviation:
GapFillFlagDescription
Indicates that the Sequence Reset message is replacing administrative or application messages which will not be resent.
Wire Format & Usage Example
Single field (key=value)
123=Y (GapFillMessage)
In a FIX message (SequenceReset)
8=FIX.4.4 | 9=... | 35=4 | 49=SENDER | 56=TARGET | 34=1 | 52=20240101-09:30:00.000 | … | 123=Y (GapFillMessage) | … | 10=...
Fields are delimited by SOH (ASCII 0x01), shown here as " | ". The highlighted field 123=Y (GapFillMessage) is this field's position in the message.
All valid values
| Wire | Name | Description |
|---|---|---|
123=Y | GapFillMessage | Gap Fill message, MsgSeqNum field valid |
123=N | SequenceReset | Sequence Reset, ignore MsgSeqNum |
Enumerated Values
2| Value | Symbolic Name | Description | Added |
|---|---|---|---|
| Y | GapFillMessage | Gap Fill message, MsgSeqNum field valid | FIX.4.0 |
| N | SequenceReset | Sequence Reset, ignore MsgSeqNum | FIX.4.0 |