For AI agents: markdown of this page — /docs-content-en/entities/invoices/products-update.md documentation index — /llms.txt

Update an invoice product

PATCH /v1/invoices/:id/products/:rowId

Updates an invoice product line. Pass only the fields being changed.

Parameters

Parameter Type Req. Description
id (path) number yes Invoice ID
rowId (path) number yes Product line ID (from the list or add response, not the productId from the catalog)

Request fields (body)

Parameter Type Description
price number Price per unit
quantity number Quantity
productId number Product ID. Catalog: GET /v1/products
discount number Discount amount
taxRate number Tax rate (%)
taxIncluded boolean Tax included in the price
sort number Sort order

Examples

curl — personal key

Terminal 
curl -X PATCH "https://vibecode.bitrix24.com/v1/invoices/741/products/1471" \
  -H "X-Api-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "price": 9999, "quantity": 10 }'

curl — OAuth application

Terminal 
curl -X PATCH "https://vibecode.bitrix24.com/v1/invoices/741/products/1471" \
  -H "X-Api-Key: YOUR_APP_KEY" \
  -H "Authorization: Bearer USER_SESSION_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{ "price": 9999, "quantity": 10 }'

JavaScript — personal key

javascript 
const res = await fetch('https://vibecode.bitrix24.com/v1/invoices/741/products/1471', {
  method: 'PATCH',
  headers: {
    'X-Api-Key': 'YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({ price: 9999, quantity: 10 }),
})

const { success, data } = await res.json()
console.log('Updated:', data.price, 'x', data.quantity)

JavaScript — OAuth application

javascript 
const res = await fetch('https://vibecode.bitrix24.com/v1/invoices/741/products/1471', {
  method: 'PATCH',
  headers: {
    'X-Api-Key': 'YOUR_APP_KEY',
    'Authorization': 'Bearer USER_SESSION_TOKEN',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({ price: 9999, quantity: 10 }),
})

const { success, data } = await res.json()

Response fields

The updated product line object: id, productId, productName, price, quantity, discount, taxRate, taxIncluded.

Response example

JSON 
{
  "success": true,
  "data": {
    "id": 1471,
    "productId": 1,
    "productName": "Server equipment",
    "price": 9999,
    "quantity": 10,
    "discount": 0,
    "taxRate": null,
    "taxIncluded": false
  }
}

Error response example

404 — line not found:

JSON 
{
  "success": false,
  "error": {
    "code": "ENTITY_NOT_FOUND",
    "message": "Item not found"
  }
}

Errors

HTTP Code Description
404 ENTITY_NOT_FOUND Line not found
403 SCOPE_DENIED API key lacks the crm scope
401 TOKEN_MISSING API key has no configured tokens

Full list of common API errors — Errors.

See also