Customers/Bulk create customers

Bulk create customers

POST/partners/customers/bulk

Creates up to 100 customers in one request with partial-success semantics.

Each row uses the same shape as Add a customer. Rows are processed independently — one failure does not roll back others. Returns the bulk batch shape documented in Response shapes (HTTP 201). Recommended batch size ~25 for large migrations.

HMAC signature + Bearer access token

Try this request

Request body

customersarrayrequired

Array of customer create payloads (same fields as POST /partners/customers).

Responses

201Batch accepted. Check successCount and per-row results.

400Batch-level validation failed (empty array, over 100 rows, etc.).

401Missing or invalid HMAC signature, expired timestamp, or invalid Bearer token. Troubleshoot

403The credential does not have access to this workspace or resource. Troubleshoot

429Rate limit exceeded (100 requests per minute per clientId). Retry after the Retry-After header. Troubleshoot

POSThttps://api.getcount.com/partners/customers/bulk

Request

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 = 'POST';
const signingPath = '/customers/bulk';
const timestamp = Math.floor(Date.now() / 1000).toString();
const body = {
  "customers": [
    {
      "customer": "Acme Corporation",
      "email": "billing@acme.com"
    },
    {
      "customer": "Beta LLC",
      "mainPhone": "+1234567890"
    }
  ]
};
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/customers/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 · 201

{
  "successCount": 2,
  "errorCount": 0,
  "results": [
    {
      "index": 0,
      "success": true,
      "customer": {
        "id": "dfa3219e-6af8-4c53-997a-037534f63a35",
        "customer": "Acme Corporation",
        "email": "contact@acme.com",
        "mainPhone": "+1234567890",
        "website": "https://acme.com",
        "status": "active",
        "notes": "Preferred customer. Net-30 terms.",
        "paymentTerm": "net30",
        "taxNumber": null,
        "taxAutoCalculate": false,
        "taxExcluded": false,
        "contactName": "John Doe",
        "billingAddress": {
          "id": "0b2c1f5e-7a9d-4f2b-9c1e-2a4b6d8e0f12",
          "street": "123 Main St",
          "city": "San Francisco",
          "state": "CA",
          "zipCode": "94102",
          "country": "USA"
        },
        "shippingAddress": null,
        "contacts": [
          {
            "id": "a5da3577-bf85-4e3a-aa73-df85ca69bc67",
            "firstName": "John",
            "lastName": "Doe",
            "email": "john@acme.com",
            "phone": "+1234567890",
            "isPrimary": true
          }
        ],
        "taxes": [],
        "salesRep": null,
        "createdAt": "2026-01-15T10:30:00.000Z",
        "updatedAt": "2026-01-28T14:22:30.000Z"
      }
    }
  ]
}