If you support custom fields for Contacts we can use use them when creating or updating a contact. To do so we need an endpoint that returns the customers Custom Fields with their IDs.
GET /fields
{
"custom_fields": [
{
"name": "Unsubscribed",
"id": "7956yv02anehlhbey3o87yghfo"
},
{
"name": "Responded",
"id": "76qgerv7956yvey3o87yghfo09"
},
{
"name": "Years at Current Position",
"id": "87y56yv02anehlhghfoyv02a2e"
}
]
}
We do prefer that all fields including the default fields are included in the response