// PUT /api/v2/parties/123
{
"party": {
"fields": [{
"value": "Test",
"definition": {
"id": 456
}
}]
}
}
// GET /api/v2/parties/123?embed=fields
{
"party": {
"id": 123,
"fields": [{
"id": 789,
"value": "Test",
"definition": {
"id": 456,
"name": "Your existing custom field"
}
}]
}
}