Segment
No
Status
Max. Occ.
Segment
   
 
UNA
1
C
1
Service string advice
 
UNB
2
M
1
Interchange header
 
   
Syntax And Service Report Heading Section
   
 
UNH
3
M
1
Message header
 
UCI
4
M
1
Interchange response
 
   
Syntax And Service Report Detail Section
   
 
SG1
    
C
999999
UCM-SG2
 
UCM
5
M
1
Message/package response
 
SG2
    
C
999
UCS-UCD
 
UCS
6
M
1
Segment error indication
 
UCD
7
C
99
Data element error indication
 
   
Syntax And Service Report Summary Section
   
 
UNT
8
M
1
Message trailer
 
UNZ
9
M
1
Interchange trailer
Max. Occ. = Maximum occurrence of the segment/group, Status: M=Mandatory, C=Conditional, R=Required, O=Optional, A=Advised, D=Dependent