# Temporarily unavailable

_Wispist / Problems_

> HTTP 503 problem returned when the Wispist store is busy, its bounded open-store cache is saturated, or an internal operation cannot safely complete.

Canonical type:

```text
https://learn.peios.org/wispist/problems/temporarily-unavailable/
```

Status: `503 Service Unavailable`. Browser code: `temporarily_unavailable`.

Wispist could not safely complete the operation. Expected transient causes include a busy SQLite store or temporary saturation of the bounded open-store cache. The response may include `Retry-After`.

Retry idempotent reads after a short backoff. Retry generated-ID POST only with the same idempotency key and identical request. Conditional replacements and deletions may be retried with the same observed revision; a committed competing change then becomes [Revision conflict](/wispist/problems/revision-conflict.md).

If the problem persists, give the operator the `X-Request-ID`. Wispist does not expose internal error text in the response.

Related content:

- [Problem Details](/wispist/problems/overview.md)
- [Rate limited](/wispist/problems/rate-limited.md)
- [HTTP API reference](/wispist/reference/http-api.md)