# SERIES_TYPE_CHANGE_LEAVES_TYPE_UNCOVERED

Cannot change the type of this series: it is the default for ‹value›, and that type still has other active series that would be left without a default. Set another ‹value› series as default first

<Callout type="info">
**Category:** [Account settings](/errors/category/configuracion)
</Callout>

## Example response

When this error occurs, the API returns a JSON response with the following shape:

```json
{
  "type": "https://docs.beel.es/errors/SERIES_TYPE_CHANGE_LEAVES_TYPE_UNCOVERED",
  "title": "SERIES_TYPE_CHANGE_LEAVES_TYPE_UNCOVERED",
  "detail": "Cannot change the type of this series: it is the default for ‹value›, and that type still has other active series that would be left without a default. Set another ‹value› series as default first",
  "instance": "/v1/<resource>",
  "errors": [],
  "success": false,
  "error": {
    "code": "SERIES_TYPE_CHANGE_LEAVES_TYPE_UNCOVERED",
    "message": "Cannot change the type of this series: it is the default for ‹value›, and that type still has other active series that would be left without a default. Set another ‹value› series as default first",
    "details": {}
  },
  "meta": {
    "timestamp": "2026-05-21T10:00:00Z",
    "request_id": "4bf92f3577b34da6a3ce929d0e0e4736"
  }
}
```

The `type` URI is stable and always resolves to this page.

## Message

<Tabs items={["English", "Spanish", "Catalan"]}>
  <Tab value="English">{"Cannot change the type of this series: it is the default for ‹value›, and that type still has other active series that would be left without a default. Set another ‹value› series as default first"}</Tab>
  <Tab value="Spanish">{"No se puede cambiar el tipo de esta serie: es la predeterminada de ‹value› y ese tipo conserva otras series activas, que se quedarían sin ninguna predeterminada. Marca antes otra serie de ‹value› como predeterminada"}</Tab>
  <Tab value="Catalan">{"No es pot canviar el tipus d'aquesta sèrie: és la predeterminada de ‹value› i aquest tipus conserva altres sèries actives, que es quedarien sense cap predeterminada. Marca abans una altra sèrie de ‹value› com a predeterminada"}</Tab>
</Tabs>

Send the request with `Accept-Language: <es|en|ca>` to receive the message in your preferred language.

> Placeholders like `‹value›` are filled in at runtime with the actual values of your request.

## Other errors in this category

<div className="grid grid-cols-2 gap-3 not-prose">
  <Card title="ACTIVE_CANNOT_DELETE" description="Cannot delete an active series. Deactivate it first" href="/errors/ACTIVE_CANNOT_DELETE" />
  <Card title="DEFAULT_CANNOT_BE_UNMARKED" description="Cannot unmark the default series. Set another series as default first" href="/errors/DEFAULT_CANNOT_BE_UNMARKED" />
  <Card title="DEFAULT_CANNOT_DEACTIVATE" description="Cannot deactivate the default series. Set another series as default first" href="/errors/DEFAULT_CANNOT_DEACTIVATE" />
  <Card title="DEFAULT_CANNOT_DELETE" description="Cannot delete the default series. Set another series as default first" href="/errors/DEFAULT_CANNOT_DELETE" />
  <Card title="ENTITY_TYPE_INCONSISTENT_WITH_NIF" description="The entity type ‹value› does not match the NIF ‹value›: an individual is identified by a DNI or NIE, and a company or entity by a NIF that starts with a legal-form letter" href="/errors/ENTITY_TYPE_INCONSISTENT_WITH_NIF" />
</div>

## Keep exploring

<div className="grid grid-cols-2 gap-3 not-prose">
  <Card title="All Account settings errors" description="Every code in this category in one table." href="/errors/category/configuracion" />
  <Card title="Error reference home" description="Browse every category or jump to the handling guide." href="/errors" />
</div>

---

Full OpenAPI spec: https://docs.beel.es/api/openapi