# plan_required: The Investor plan is required

Status 403.

## Why it happens

A Founder key called an endpoint in the Investor plan, or a metered unit Founder does not include.

## What to do

Investor opens these endpoints. The `product` member opens the page to move a Founder plan to Investor.

## Example

```json
{
  "type": "https://unique.domains/api/problems/plan_required",
  "title": "The Investor plan is required",
  "status": 403,
  "detail": "POST /names/{name}/appraise comes with the Investor plan; this key is on Founder.",
  "instance": "/v1/names/harbor.io/appraise",
  "code": "plan_required",
  "product": "https://app.unique.domains/home?upgrade=investor"
}
```

All errors: https://unique.domains/api/problems