APERAK
Application error and acknowledgement message

UNH M Message header

BGM M Beginning of message

DTM C Date/time/period

FTX C Free text

CNT C Control total

SG1 C
DOC
DTM

SG2 C
RFF
DTM

SG3 C
NAD
CTA
COM

SG4 C
ERC
FTX
SG5

UNT M Message trailer