CustomerUpdateRequest

Customer update payload. Provide id or externalId to locate the record; only the
fields you send are changed. When locating by id, an externalId here is treated as a
new, unique value. metadata replaces the existing object wholesale.

{
    "id": "9f2c8b7a4e1d6c3f0a5b8e2d7c4f1a9b",
    "externalId": "crm-7741",
    "name": "Layla A. Hassan",
    "email": "layla.new@example.com",
    "mobile": "+97333778899",
    "metadata": {
        "tier": "platinum"
    }
}