CheckSum

Tag 10

CheckSum

Abbreviation:
Typechar
Tag10
AddedFIX.2.7
Used in28 messages

Description

Three byte, simple checksum (see Appendix B for description). ALWAYS LAST FIELD IN RECORD; i.e. serves, with the trailing <SOH>, as the end-of-record delimiter. Always defined as three characters. (Always unencrypted)

Wire Format & Usage Example

Single field (key=value)
10=128
In a FIX message (ExecutionReport)
8=FIX.4.4 | 9=... | 35=8 | 49=SENDER | 56=TARGET | 34=1 | 52=20240101-09:30:00.000 |  | 10=128 |  | 10=...

Fields are delimited by SOH (ASCII 0x01), shown here as " | ". The highlighted field 10=128 is this field's position in the message.