Causa
Los grupos de campos admitidos son public, business, confidential y people.
Qué hacer
Use solo esos grupos.
application/problem+json
{
"type": "https://masnet.com/developers/errors/invalid_field_groups",
"title": "Grupos de campos no válidos",
"status": 400,
"detail": "...",
"code": "invalid_field_groups",
"correlation_id": "..."
}