The same as [PATCH] /contacts/{contactId}, but for multiple contacts. Contacts are saved with all or nothing strategy, so all contacts must be valid. The maximum amount of contacts to update in a single request is 100.

It is important to note that contacts are website visitors who have interacted with the Tidio widget and have been identified by their name, email address, or phone number.

{
  "contacts": [
    {
      "id": "a1b4ca4c-1108-4432-b256-1e4cf2bf6f9e",
      "email": "email@example.com",
      "phone": "123 456 789",
      "first_name": "John",
      "last_name": "Doe",
      "email_consent": "subscribed",
      "properties": [
        {
          "name": "shoe_size",
          "value": "44 (EU)"
        }
      ],
      "distinct_id": "123456"
    }
  ]
}