BOPDIR
Direct balance of payment declaration message

UNH M Message header

BGM M Beginning of message

DTM M Date/time/period

SG1 C
RFF
DTM

SG2 M
NAD
CTA
COM

SG3 C
LIN
FII
SG4

UNS M Section control

SG7 C
LIN
RCS
FII
...

SG11 C
RFF
SG12

SG16 C
AUT
DTM

UNT M Message trailer