Cause
The accepted field groups are public, business, confidential and people.
What to do
Use only those groups.
application/problem+json
{
"type": "https://masnet.com/developers/errors/invalid_field_groups",
"title": "Invalid field groups",
"status": 400,
"detail": "...",
"code": "invalid_field_groups",
"correlation_id": "..."
}