© 2025 ProgM 
Segment UNH: MESSAGE HEADER
| Tag | UNH | 
| Name | MESSAGE HEADER | 
| Func | To head, identify and specify a message.  | 
Elemente
| Element/Gruppe | No/Code | Beschreibung | Opt/Mand. | 
| Element | 0062 | Unique message reference assigned by the sender. | Mandatory | 
| Gruppe | S009 | Identification of the type, version, etc. of the message being interchanged.  | Mandatory | 
| Element | 0068 | Reference serving as a key to relate all subsequent transfers of datato the same business case or file. | Optional | 
| Gruppe | S010 | Statement that the message is one in a sequence of transfers relating to the same topic.  | Optional | 
| Gruppe | S016 | To identify a message subset by its identifier, version, release and source.  | Optional | 
| Gruppe | S017 | To identify a message implementation guideline by its identifier, version, release and source.  | Optional | 
| Gruppe | S018 | To identify a scenario.  | Optional |