| Segment | Ebene | Beschreibung | Opt/Mand. |
|---|
| UNH | 0 | A service segment starting and uniquely identifying a message. The message type code for the Chart of accounts message is CHACCO. Note: Chart of accounts messages conforming to this document must contain the following data in segment UNH, composite S009: Data element 0065 CHACCO D A UN | Mandatory |
| BGM | 0 | A segment identifying the type of chart of accounts. | Mandatory |
| DTM | 0 | A segment containing the date of the opening and closing period of the chart of accounts message, and its preparation date. | Mandatory |
| RFF | 0 | A segment containing the chart of accounts references (type and version number). | Optional |
| CUX | 0 | A segment providing currencies which are specific to the chart of accounts message. | Optional |
| FTX | 0 | A segment with free text information, in coded or clear form, for the purpose of providing additional clarification. | Optional |
| SG1 | 0 | SG1 | Optional |
| NAD | 1 | A segment to identify the sender, recipient or intermediary. | Mandatory |
| RFF | 1 | A segment to provide references which are specific to the concerned party. | Optional |
| SG2 | 1 | SG2 | Optional |
| CTA | 2 | A segment to provide contacts related to the party. | Mandatory |
| COM | 2 | A segment to provide communication numbers of the contact. | Optional |
| SG3 | 0 | SG3 | Optional |
| CCI | 1 | A segment to identify an accounting characteristic of the chart of accounts. | Mandatory |
| CAV | 1 | A segment to provide the value of the above characteristic. | Optional |
| SG4 | 0 | SG4 | Optional |
| LIN | 1 | A segment indicating the chart of accounts line number within the message. | Mandatory |
| CPT | 1 | A segment containing detailed information identifying the principal account number (general, subsidiary, analytical or budget account). | Mandatory |
| FTX | 1 | A segment to provide the source of the account and information about the creation of the account. | Optional |
| TAX | 1 | A segment used to provide tax related information. Mainly used to provide the tax rate. | Optional |
| DTM | 1 | A segment giving detailed information on the opening and closing dates of an account of the chart of accounts message. | Optional |
| SG5 | 1 | SG5 | Optional |
| REL | 2 | A segment to identify the relationship between a principal account and other associated entities (sub-account, bank account, etc.). | Mandatory |
| CPT | 2 | A segment containing detailed information identifying the account (general, subsidiary, analytical or budget account) linked to the principal account. | Optional |
| FII | 2 | A segment identifying the associated bank account. | Optional |
| PYT | 2 | A segment providing associated payment terms. | Optional |
| PAI | 2 | A segment specifying instructions related to payment. | Optional |
| SG6 | 2 | SG6 | Optional |
| CCI | 3 | A segment to identify a legal or accounting characteristic of an account. | Mandatory |
| CAV | 3 | A segment to provide the value of the above characteristic. | Optional |
| SG7 | 1 | SG7 | Optional |
| NAD | 2 | A segment identifying the concerned party. | Mandatory |
| RFF | 2 | A segment providing references related to the party. It can be used to provide numbers such as the VAT number of the account holder company. | Optional |
| SG8 | 2 | SG8 | Optional |
| CTA | 3 | A segment to provide contacts related to the party. | Mandatory |
| COM | 3 | A segment to provide communication numbers of the contact. | Optional |
| EQN | 0 | A segment specifying the number of accounts in the chart of accounts message. | Mandatory |
| SG9 | 0 | SG9 | Mandatory |
| AUT | 1 | A segment to provide results of the accounting application of an authentication procedure. | Mandatory |
| DTM | 1 | A segment to provide the date of the authentication. | 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 |
