GET api/2.0/crm/invoice/bynumber?number=some+text
Host: yourportal.r7-office.ru
Content-Type: application/json
Accept: application/json

application/json

{
  "status": 0,
  "response": {
    "invoiceLines": [
      {
        "invoiceID": 0,
        "invoiceItemID": 0,
        "invoiceTax1ID": 0,
        "invoiceTax2ID": 0,
        "sortOrder": 0,
        "description": "",
        "quantity": 0.0,
        "price": 0.0,
        "discount": 0.0,
        "id": 0
      }
    ],
    "status": {
      "title": "Draft",
      "id": 1
    },
    "number": "",
    "issueDate": "2022-10-08T15:03:33.4143879Z",
    "templateType": 0,
    "contact": null,
    "consignee": null,
    "entity": null,
    "dueDate": "2022-10-08T15:03:33.4143879Z",
    "language": "",
    "currency": {
      "title": "Chinese Yuan",
      "symbol": "¥",
      "abbreviation": "CNY",
      "cultureName": "CN",
      "isConvertable": true,
      "isBasic": false
    },
    "exchangeRate": 1.0,
    "purchaseOrderNumber": "",
    "terms": "",
    "description": "",
    "fileID": -1,
    "createOn": "2022-10-08T15:03:33.4143879Z",
    "createBy": {
      "id": "00000000-0000-0000-0000-000000000000",
      "displayName": "Mike Zanyatski",
      "title": "Manager",
      "avatarSmall": "url to small avatar",
      "profileUrl": ""
    },
    "cost": 0.0,
    "canEdit": true,
    "canDelete": true,
    "id": 0
  }
}

text/xml

<result>
  <status>0</status>
  <response>
    <invoiceLines>
      <invoiceID>0</invoiceID>
      <invoiceItemID>0</invoiceItemID>
      <invoiceTax1ID>0</invoiceTax1ID>
      <invoiceTax2ID>0</invoiceTax2ID>
      <sortOrder>0</sortOrder>
      <description></description>
      <quantity>0</quantity>
      <price>0</price>
      <discount>0</discount>
      <id>0</id>
    </invoiceLines>
    <status>
      <title>Draft</title>
      <id>1</id>
    </status>
    <number></number>
    <issueDate>2022-10-08T15:03:33.4143879Z</issueDate>
    <templateType>0</templateType>
    <contact />
    <consignee />
    <entity />
    <dueDate>2022-10-08T15:03:33.4143879Z</dueDate>
    <language></language>
    <currency>
      <title>Chinese Yuan</title>
      <symbol>¥</symbol>
      <abbreviation>CNY</abbreviation>
      <cultureName>CN</cultureName>
      <isConvertable>true</isConvertable>
      <isBasic>false</isBasic>
    </currency>
    <exchangeRate>1</exchangeRate>
    <purchaseOrderNumber></purchaseOrderNumber>
    <terms></terms>
    <description></description>
    <fileID>-1</fileID>
    <createOn>2022-10-08T15:03:33.4143879Z</createOn>
    <createBy>
      <id>00000000-0000-0000-0000-000000000000</id>
      <displayName>Mike Zanyatski</displayName>
      <title>Manager</title>
      <avatarSmall>url to small avatar</avatarSmall>
      <profileUrl></profileUrl>
    </createBy>
    <cost>0</cost>
    <canEdit>true</canEdit>
    <canDelete>true</canDelete>
    <id>0</id>
  </response>
</result>