curl --request PATCH \
  --url https://sandbox-api.sakawave.example/v1/customers/{customerId} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "email": "ada.updated@example.com"
}
'

const options = {
  method: 'PATCH',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({email: 'ada.updated@example.com'})
};

fetch('https://sandbox-api.sakawave.example/v1/customers/{customerId}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://sandbox-api.sakawave.example/v1/customers/{customerId}"

payload = { "email": "ada.updated@example.com" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.patch(url, json=payload, headers=headers)

print(response.text)

{
  "id": "01K2Z3AB4C5D6E7F8G9HJKMNPQ",
  "type": "individual",
  "jurisdiction": "NG",
  "externalReference": "cust_1001",
  "displayName": "Ada Okafor",
  "name": null,
  "firstName": "Ada",
  "middleName": null,
  "lastName": "Okafor",
  "email": "ada.updated@example.com",
  "phoneNumber": "+2348012345678",
  "dateOfBirth": "1992-04-18",
  "gender": "female",
  "address": {
    "line1": "14 Marina Road",
    "line2": null,
    "city": "Lagos",
    "state": "Lagos",
    "postalCode": "100001",
    "country": "NG"
  },
  "tier": 1,
  "hasBvn": true,
  "hasNin": false,
  "hasPassport": false,
  "hasDriversLicence": false,
  "hasTaxId": false,
  "hasRegistrationNumber": false,
  "createdAt": "2026-08-14T09:00:00.000Z",
  "updatedAt": "2026-08-14T09:00:00.000Z"
}

{
  "statusCode": 400,
  "message": "Must be a valid identifier.",
  "code": "validation_failed",
  "errors": [
    {
      "message": "Must be a valid identifier.",
      "field": "accountId",
      "code": "custom",
      "path": [
        "accountId"
      ]
    }
  ]
}

{
  "statusCode": 401,
  "code": "INVALID_API_KEY",
  "message": "Invalid or inactive API credentials."
}

{
  "statusCode": 404,
  "code": "resource_not_found",
  "message": "Resource not found."
}

{
  "statusCode": 409,
  "code": "resource_conflict",
  "message": "The request conflicts with the current resource state."
}

{
  "statusCode": 429,
  "message": "Too many API requests. Try again later.",
  "code": "api_key_rate_limit_exceeded",
  "retryAfterSeconds": 17
}

{
  "statusCode": 500,
  "code": "internal_server_error",
  "message": "An unexpected error occurred."
}