This resource contains the custom fields definitions in your Portal. The custom fields are returned in the items property which contains a list of invididual custom field objects.

Each property in the custom field resource corresponds to a property that can be set inside the customFields property in the Client resource

{
  "object": "customFields",
  "items": [
    {
      "id": "71cc12f5-32ce-496f-8fa7-51a5f63b38a4",
      "type": "url",
      "name": "website",
      "order": 7
    },
    {
      "id": "eb1786c5-2baf-4f84-b0d9-61f9f74d09fc",
      "type": "address",
      "name": "Address",
      "order": 13
    },
    {
      "id": "71813f92-3c9f-4161-835e-e0b4b9d4d130",
      "type": "email",
      "name": "Support Email",
      "order": 5
    },
    {
      "id": "7b1f2546-e01f-4279-94c0-0323d004dfdd",
      "type": "text",
      "name": "Text",
      "order": 8
    },
    {
      "id": "8465086b-29e9-4c0f-ae84-1f9246a2bc01",
      "type": "number",
      "name": "Access Code",
      "order": 10
    },
    {
      "id": "7058565d-1753-4ca0-bbf3-3ec95121681b",
      "type": "multiSelect",
      "name": "Services",
      "order": 12,
      "options": [
        {
          "id": "option-19c0a575-e2af-47c2-9090-6b7ce0bad82b",
          "label": "Billing",
          "color": "rgba(144, 149, 157, 1)"
        },
        {
          "id": "option-b38b1d2a-a05d-4572-a8e3-6565e91f65c8",
          "label": "Messaging",
          "color": "rgba(0, 0, 0, 1)"
        },
        {
          "id": "option-edf0eff1-9b32-48bb-8a2c-e1288883437c",
          "label": "Metrics",
          "color": "rgba(150, 75, 0, 1)"
        },
        {
          "id": "option-e70acdf0-a803-449e-8706-a18d54100017",
          "label": "File Sharing",
          "color": "rgba(204, 0, 0, 1)"
        }
      ],
      "value": [
        "option-19c0a575-e2af-47c2-9090-6b7ce0bad82b",
        "option-b38b1d2a-a05d-4572-a8e3-6565e91f65c8",
        "option-edf0eff1-9b32-48bb-8a2c-e1288883437c"
      ]
    },
    {
      "id": "f1eaf544-6da4-457b-bea8-3777a2eeefa7",
      "type": "phoneNumber",
      "name": "Phone Number",
      "order": 3
    }
  ]
}