---
title: "Bulk change transaction category · Transactions · COUNT Partner API"
description: "Categorizes or uncategorizes up to 100 existing transactions in one call. PATCH /partners/transactions/change-category-bulk"
canonical: "https://developers.getcount.com/reference/transactions/bulk-change-transaction-category"
source: "https://developers.getcount.com/reference/transactions/bulk-change-transaction-category"
---
[Transactions](https://developers.getcount.com/reference/transactions) / Bulk change transaction category

# Bulk change transaction category

PATCH `/partners/transactions/change-category-bulk`

Categorizes or uncategorizes up to 100 existing transactions in one call.

Per-row partial success: unresolvable UUIDs or ineligible rows (reviewed, reconciled, pending, attached to bill/invoice/transfer/deposit) appear in `failures` instead of failing the whole batch. Prefer `categoryAccountUuid` (or null to uncategorize). Liabilities physical accounts may create linked transfers; bank/cash Assets physical accounts still return 400 in bulk.

HMAC signature + Bearer access token

[Try this request](https://developers.getcount.com/tools/try-it?method=PATCH&path=%2Fpartners%2Ftransactions%2Fchange-category-bulk&body=%7B%0A++%22categoryAccountUuid%22%3A+%22c3d4e5f6-a7b8-9012-cdef-123456789012%22%2C%0A++%22transactionUuids%22%3A+%5B%0A++++%22b7c8d9e0-f1a2-3456-bcde-678901234567%22%2C%0A++++%22b7c8d9e0-f1a2-3456-bcde-678901234568%22%0A++%5D%0A%7D)

[Chart of Accounts API](https://developers.getcount.com/reference/chart-of-accounts) [Bills API](https://developers.getcount.com/reference/bills) [Invoices API](https://developers.getcount.com/reference/invoices)

#### Request body

`categoryAccountUuid` uuid

Category account UUID from list accounts, or null to uncategorize.

`transactionUuids` array required

Non-empty array of transaction UUIDs (max 100).

#### Responses

`200` Bulk category change processed.

`400` Empty or oversized transactionUuids array.

`401` Missing or invalid HMAC signature, expired timestamp, or invalid Bearer token. [Troubleshoot](https://developers.getcount.com/getting-started/errors#error-401)

`403` The credential does not have access to this workspace or resource. [Troubleshoot](https://developers.getcount.com/getting-started/errors#error-403)

`429` Rate limit exceeded (100 requests per minute per clientId). Retry after the Retry-After header. [Troubleshoot](https://developers.getcount.com/getting-started/errors#error-429)

[Previous PATCH Change transaction category](https://developers.getcount.com/reference/transactions/change-transaction-category) [Next POST Bulk review transactions](https://developers.getcount.com/reference/transactions/bulk-review-transactions)

PATCH `https://api.getcount.com/partners/transactions/change-category-bulk`

Request

```javascript
import crypto from 'node:crypto';

const BASE_URL = 'https://api.getcount.com';
const CLIENT_ID = process.env.COUNT_CLIENT_ID;
const CLIENT_SECRET = process.env.COUNT_CLIENT_SECRET;
const ACCESS_TOKEN = process.env.COUNT_ACCESS_TOKEN;

const method = 'PATCH';
const signingPath = '/transactions/change-category-bulk';
const timestamp = Math.floor(Date.now() / 1000).toString();
const body = {
  "categoryAccountUuid": "c3d4e5f6-a7b8-9012-cdef-123456789012",
  "transactionUuids": [
    "b7c8d9e0-f1a2-3456-bcde-678901234567",
    "b7c8d9e0-f1a2-3456-bcde-678901234568"
  ]
};
const bodyString = JSON.stringify(body);

const bodyHash = crypto.createHash('sha256').update(bodyString).digest('hex');
const baseString = `${method}:${signingPath}:${timestamp}:${bodyHash}`;
const signature = crypto.createHmac('sha256', CLIENT_SECRET).update(baseString).digest('hex');

const response = await fetch(`${BASE_URL}/partners/transactions/change-category-bulk`, {
  method,
  headers: {
    'x-client-id': CLIENT_ID,
    'x-timestamp': timestamp,
    'x-signature': signature,
    'Content-Type': 'application/json',
    Authorization: `Bearer ${ACCESS_TOKEN}`,
  },
  body: bodyString,
});

console.log(await response.json());
```

Response · 200

```json
{
  "status": "success",
  "message": "Bulk category change processed.",
  "data": {
    "successCount": 1,
    "failedCount": 0,
    "failures": [],
    "updatedTransactions": [
      {
        "id": "b7c8d9e0-f1a2-3456-bcde-678901234567",
        "type": "EXPENSE",
        "description": "Office supplies from Amazon",
        "amount": -150,
        "currency": "USD",
        "postedDate": "2026-03-01",
        "authorizedDate": "2026-03-01",
        "notes": "Q1 office supplies",
        "paymentChannel": "online",
        "reviewed": false,
        "excluded": false,
        "pending": false,
        "split": false,
        "accountId": "c8d9e0f1-a2b3-4567-cdef-789012345678",
        "categoryAccountId": "c3d4e5f6-a7b8-9012-cdef-123456789012",
        "vendorId": "d4e5f6a7-b8c9-0123-defa-234567890123",
        "customerId": null,
        "billId": null,
        "invoiceId": null,
        "tags": [
          {
            "id": "e5f6a7b8-c9d0-1234-efab-345678901234",
            "name": "Office"
          }
        ],
        "createdAt": "2026-03-13T08:30:00.000Z",
        "updatedAt": "2026-03-13T08:30:00.000Z"
      }
    ]
  }
}
```