| Segment | Ebene | Beschreibung | Opt/Mand. |
|---|
| UNH | 0 | A service segment starting and uniquely identifying a message. The message type code for the General purpose message is GENRAL. Note: General purpose messages conforming to this document must contain the following data in segment UNH, composite S009: Data element 0065 GENRAL D A UN | Mandatory |
| BGM | 0 | A segment to indicate the type and function of the GENRAL message and to transmit its unique identifying number. | Mandatory |
| DTM | 0 | A segment specifying general dates, and when relevant, times related to the whole message. | Optional |
| SG1 | 0 | SG1 | Optional |
| RFF | 1 | A segment for referencing documents relating to the whole message, e.g. despatch advice, purchase orders, delivery instructions. | Mandatory |
| DTM | 1 | Date/time/period as applied to the referenced document. | Optional |
| SG2 | 0 | SG2 | Optional |
| NAD | 1 | A segment for identifying name and addresses of a party and their functions relevant for the whole message. Identification of the sender and receiver parties are mandatory for the message. It is recommended that where possible only the coded form of the party ID should be specified. | Mandatory |
| LOC | 1 | A segment indicating more details regarding specific place/location related to the party specified in the NAD segment, e.g. internal site/building number. | Optional |
| SG3 | 1 | SG3 | Optional |
| RFF | 2 | A segment for referencing documents relating to the party specified by the NAD segment. | Mandatory |
| DTM | 2 | A segment for date/time/period as related to the referred document. | Optional |
| SG4 | 1 | SG4 | Optional |
| CTA | 2 | A segment to identify the person, function, department to whom communication should be directed. | Mandatory |
| COM | 2 | A segment to identify communication types and numbers for person, function, department identified in CTA. | Optional |
| SG5 | 0 | SG5 | Optional |
| FTX | 1 | A segment to identify the text type and reason, and to specify the relevant agreed information. | Mandatory |
| SG6 | 1 | SG6 | Mandatory |
| NAD | 2 | A segment for identifying names and addresses. It is recommended that where possible the coded form of the party identification should be specified. | Mandatory |
| LOC | 2 | A segment indicating more details regarding specific place/location related to the party specified in the NAD segment, e.g. internal site/building number. | Optional |
| SG7 | 2 | SG7 | Optional |
| RFF | 3 | A segment for referencing documents relating to the party specified by the NAD segment. | Mandatory |
| DTM | 3 | A segment for date/time/period as related to the referenced document. | Optional |
| SG8 | 2 | SG8 | Optional |
| CTA | 3 | A segment to identify person, function, department to whom communication should be directed. | Mandatory |
| COM | 3 | A segment to identify communication types and numbers for person, function, department identified in CTA. | Optional |
| UNT | 0 | A service segment ending a message, giving the total number of segments in the message (including the UNH & UNT) and the control reference number of the message. | Mandatory |
