# API: Convergent Invoicing Invoicing Document (A2X)
# File: CAINVOICINGDOCUMENT_0001.md
# Version: 1.0.2
# Status: ACTIVE
# Protocol: OData V4
# Source URL: https://api.sap.com/api/CAINVOICINGDOCUMENT_0001/overview
# Generated: 2026-07-23 14:17:02
---

# Convergent Invoicing Document (A2X) / 融合开票凭证 API

> **API 版本:** 1.0.2 | **状态:** ACTIVE | **协议:** OData V4  
> **技术名称:** `CAINVOICINGDOCUMENT`  
> **服务根路径:** `/sap/opu/odata4/sap/cainvoicingdocument/srvd_a2x/sap/convergentinvoicinginvoicingdocument/0001/`  
> **SAP 通信场景:** `SAP_COM_0011`

## 概述 / Overview

该服务提供融合开票（Convergent Invoicing）中开票凭证的读取操作。支持根据开票凭证编号检索开票凭证头数据，包括公司代码、业务伙伴、净额、税额、货币和开票凭证类型等信息。

This synchronous inbound OData V4 service enables read operations on invoicing documents from Convergent Invoicing. It supports retrieval of invoicing document header data by invoicing document number, including company code, business partner, net amount, tax amount, currency, and invoicing document type.

**API 业务加速器中心:** [https://api.sap.com/api/CAINVOICINGDOCUMENT_0001/overview](https://api.sap.com/api/CAINVOICINGDOCUMENT_0001/overview)

---

## 实体列表 / Entity List

| # | 实体名称 | 描述 (EN) | 描述 (CN) | 主键 |
|---|----------|-----------|-----------|------|
| 1 | `A_CIInvoicingDocument` | Invoicing Document | 开票凭证 | `InvoicingDocument` |

---

## 1. A_CIInvoicingDocument — 开票凭证

**实体集合路径:** `A_CIInvoicingDocument`  
**主键 (Key):** `InvoicingDocument` (CHAR 10)  
**ETag:** 支持 (`LastModifiedDateTime` 字段)

### 字段列表 / Field List

| 字段名 | 类型 | 长度 | 描述 (EN) | 描述 (CN) |
|--------|------|------|-----------|-----------|
| `InvoicingDocument` | CHAR | 10 | Invoicing Document Number | 开票凭证编号 |
| `CompanyCode` | CHAR | 4 | Company Code | 公司代码 |
| `BusinessPartner` | CHAR | 10 | Business Partner Number | 业务伙伴编号 |
| `ContractAccount` | CHAR | 12 | Contract Account Number | 合同账户编号 |
| `PostingDate` | DATS | 8 | Posting Date | 过账日期 |
| `DocumentDate` | DATS | 8 | Document Date | 凭证日期 |
| `NetAmount` | DEC | 23(2) | Net Amount in Document Currency | 凭证货币净额 |
| `TaxAmount` | DEC | 23(2) | Tax Amount in Document Currency | 凭证货币税额 |
| `GrossAmount` | DEC | 23(2) | Gross Amount in Document Currency | 凭证货币总额 |
| `DocumentCurrency` | CUKY | 5 | Document Currency | 凭证货币 |
| `InvoicingDocumentType` | CHAR | 2 | Invoicing Document Type | 开票凭证类型 |
| `InvoicingDocumentCategory` | CHAR | 2 | Invoicing Document Category | 开票凭证类别 |
| `InvoicePeriodStartDate` | DATS | 8 | Invoice Period Start Date | 开票期间开始日期 |
| `InvoicePeriodEndDate` | DATS | 8 | Invoice Period End Date | 开票期间结束日期 |
| `BillingDocument` | CHAR | 10 | Billing Document | 计费凭证 |
| `ReferenceDocument` | CHAR | 16 | Reference Document | 参考凭证 |
| `CreationDate` | DATS | 8 | Creation Date | 创建日期 |
| `CreatedByUser` | CHAR | 12 | Created By User | 创建用户 |
| `LastModifiedDateTime` | DEC | 15 | Last Modified Timestamp | 最后修改时间戳 |
| `DocumentReferenceID` | CHAR | 16 | Document Reference ID | 凭证参考标识 |
| `PaymentTerms` | CHAR | 4 | Payment Terms | 支付条款 |
| `DueDate` | DATS | 8 | Net Due Date | 净到期日 |
| `ExchangeRate` | DEC | 9(5) | Exchange Rate | 汇率 |
| `AccountingDocument` | CHAR | 10 | Accounting Document Number | 会计凭证编号 |
| `FiscalYear` | NUMC | 4 | Fiscal Year | 会计年度 |

### 导航属性 / Navigation Properties

| 导航属性 | 目标实体 | 描述 (EN) | 描述 (CN) |
|----------|----------|-----------|-----------|
| `to_BusinessPartner` | A_BusinessPartner | Business Partner Master Data | 业务伙伴主数据 |