Update Customer

Update an existing customer's information.

PUThttps://api.zenpayz.com/merchant/api/v1/customers/{customerId}

Bearer · API key

Request

Path Parameters

Parameter	Type	Description
customerId REQUIRED	string	Customer ID (e.g., cust_a1b2c3d4e5f6g7h8)

Headers

Header	Description
Authorization REQUIRED	Bearer {api_key}
X-Signature REQUIRED	HMAC-SHA256 signature
X-Timestamp REQUIRED	ISO 8601 timestamp
X-Secret-Salt REQUIRED	Secret salt for HMAC validation
Content-Type REQUIRED	application/json

Body Parameters

Parameter	Type	Description
email OPTIONAL	string	Customer email address
phone OPTIONAL	string	Phone number (10-15 characters)
firstName OPTIONAL	string	Customer first name (1-100 characters)
lastName OPTIONAL	string	Customer last name (1-100 characters)
dateOfBirth OPTIONAL	string	Date of birth (YYYY-MM-DD)
country OPTIONAL	string	ISO country code
ipAddress OPTIONAL	string	Customer IPv4 address
deviceFingerprint OPTIONAL	string	Device fingerprint (10-255 characters)
metadata OPTIONAL	object	Custom key-value pairs

Response

Success (200 OK)

{
  "success": true,
  "data": {
    "customerId": "cust_a1b2c3d4e5f6g7h8",
    "email": "john.updated@example.com",
    "firstName": "John",
    "lastName": "Doe",
    "phone": "+1234567890",
    "country": "US",
    "status": "active",
    "riskLevel": "low",
    "createdAt": "2024-01-01T10:00:00.000Z",
    "updatedAt": "2024-01-15T10:35:00.000Z"
  },
  "message": "Customer updated successfully",
  "error": null,
  "meta": {
    "request_id": "req_xxxxx",
    "timestamp": "2024-01-15T10:35:00.000Z",
    "processing_time_ms": 60,
    "api_version": "v1",
    "endpoint": "PUT /customers/:id",
    "user_type": "merchant"
  }
}

Error Responses

Code	HTTP	Message
VALIDATION_ERROR	400	Invalid request parameters
UNAUTHORIZED	401	Invalid API key
CUSTOMER_NOT_FOUND	404	Customer doesn't exist

Examples

cURL

curl -X PUT "https://api.zenpayz.com/merchant/api/v1/customers/cust_a1b2c3d4e5f6g7h8" \
  -H "Authorization: Bearer zp_test_xxxxx" \
  -H "X-Timestamp: 2024-01-15T10:30:00.000Z" \
  -H "X-Signature: a1b2c3d4e5f6..." \
  -H "X-Secret-Salt: your_secret_salt" \
  -H "Content-Type: application/json" \
  -d '{
    "email": "john.updated@example.com",
    "phone": "+1987654321"
  }'

SDK

const customer = await zenpays.customers.update('cust_a1b2c3d4e5f6g7h8', {
  email: 'john.updated@example.com',
  phone: '+1987654321',
});