Tag Field Name Data Type Description Used in
10 CheckSum

AbbrName: CheckSum

Not Requred in FIXML
String Three byte, simple checksum (see Volume 2: "Checksum Calculation" for description). ALWAYS LAST FIELD IN MESSAGE; i.e. serves, with the trailing <SOH>, as the end-of-message delimiter. Always defined as three characters. (Always unencrypted)
StandardTrailer