| Segment | Ebene | Beschreibung | Opt/Mand. |
|---|
| UNH | 0 | A service segment starting and uniquely identifying a message. The message type code for the Advice of an amendment of a documentary credit message is DOCAMA. Note: Advice of an amendment of a documentary credit messages conforming to this document must contain the following data in segment UNH, composite S009: Data element 0065 DOCAMA D A UN | Mandatory |
| BGM | 0 | A segment by means of which the sender must uniquely identify the DOCAMA message using its type and number and when necessary its function. | Mandatory |
| RFF | 0 | A segment identifying the number of the referenced documentary credit. It also indicates the number of the amendment. This number should be the latest in the series of all amendments made. | Mandatory |
| FCA | 0 | A segment specifying the allocation of charges due to an amendment. | Optional |
| DTM | 0 | A segment specifying the date and/or time the message is created and, if applicable, the date of the original issue of the documentary credit, the new (i.e. revised) expiry date of the documentary credit and amendments to the date or period of shipment. | Optional |
| MOA | 0 | A segment specifying either the currency and amount of an increase in the documentary credit amount or the currency and amount of a decrease in the documentary credit amount. It also specifies the currency and total amount of the documentary credit after the amendment, disregarding any drawings. | Optional |
| LOC | 0 | A segment specifying amendments to the place from where to where shipment(s) under the documentary credit must be made. | Optional |
| TSR | 0 | A segment specifying the amendments to the part- shipment and/or transhipment instructions. | Optional |
| FTX | 0 | A segment with free text information used when additional information is needed but cannot be accommodated within other segments. | Optional |
| SG1 | 0 | SG1 | Optional |
| FII | 1 | A segment identifying the financial institution(s) associated with the documentary credit, in coded or uncoded form, their functions and account numbers involved. | Mandatory |
| RFF | 1 | A segment specifying reference numbers of parties specified in the leading FII segment. | Optional |
| CTA | 1 | A segment identifying a person or a department for the party specified in the leading FII segment to whom communication should be directed. | Optional |
| COM | 1 | A segment identifying communication type(s) and number(s) of person(s) or department(s) specified in the associated CTA segment. | Optional |
| SG2 | 0 | SG2 | Optional |
| NAD | 1 | A segment identifying names and addresses of the parties associated with the documentary credit, in coded or uncoded form, and their functions. | Mandatory |
| RFF | 1 | A segment specifying reference numbers of parties specified in the leading NAD segment. | Optional |
| CTA | 1 | A segment identifying a person or a department for the party specified in the leading NAD segment to whom communication should be directed. | Optional |
| COM | 1 | A segment identifying communication type(s) and number(s) of person(s) or department(s) specified in the associated CTA segment. | Optional |
| SG3 | 0 | SG3 | Optional |
| AUT | 1 | A segment specifying details of any authentication (validation) procedures applied to the DOCAMA message. | Mandatory |
| DTM | 1 | A segment identifying the validation date/time. | 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 |
