RECORD
Reinsurance core data message

UNH M Message header

BGM M Beginning of message

DTM M Date/time/period

AGR M Agreement identification

RFF M Reference

GEI C Processing information

FTX C Free text

SG1 M
PNA
BUS
RFF
...

SG3 C
IDE
GEI
ICD
...

SG17 C
DOC
RFF
IDE
...

UNT M Message trailer