> ## Documentation Index
> Fetch the complete documentation index at: https://docs.reservesense.com/llms.txt
> Use this file to discover all available pages before exploring further.

# API Errors

> RFC 9457 problem type URLs returned by the Reserve Sense API.

When a request fails, the Reserve Sense API returns an [RFC 9457](https://www.rfc-editor.org/rfc/rfc9457.html) problem document (`application/problem+json`). The `type` member is a URL on this page. Open it for what the error means. `title` is the short name of that type. `detail` is the message for this request.

## Not authenticated

**Type:** `https://docs.reservesense.com/api/errors#not-authenticated`\
**Status:** 401

The request did not include a valid Reserve Sense session. Sign in and retry. If you are already signed in, your session may have expired — sign in again.

## Forbidden

**Type:** `https://docs.reservesense.com/api/errors#forbidden`\
**Status:** 403

You are signed in but cannot perform this action. You do not have permission for this resource or organization. Switch accounts or ask an administrator.

## Not found

**Type:** `https://docs.reservesense.com/api/errors#not-found`\
**Status:** 404

The requested resource does not exist or is not visible to you. Check the ID and that you are in the right organization. The item may have been deleted.

## Bad request

**Type:** `https://docs.reservesense.com/api/errors#bad-request`\
**Status:** 400

The server could not read the request. The body or headers were malformed (for example, invalid JSON or a bad webhook signature). Fix the request and retry.

## Validation

**Type:** `https://docs.reservesense.com/api/errors#validation`\
**Status:** 422

A field in the request did not match the expected schema. `detail` names the field and the rule (required, format, range). Correct the field and retry. This is different from [unprocessable](#unprocessable), which is a business rule after the schema succeeds.

## Unprocessable

**Type:** `https://docs.reservesense.com/api/errors#unprocessable`\
**Status:** 422

The request was valid but cannot be applied. The fields parsed, but a business rule blocked the change — for example a report that is already complete, a missing related record, or a value that is not allowed in this context. Read `detail` for the rule. Schema failures use [validation](#validation) instead.

## Conflict

**Type:** `https://docs.reservesense.com/api/errors#conflict`\
**Status:** 409

The change conflicts with data that already exists. A unique value is already taken (for example a property number). Choose a different value.

## Rate limited

**Type:** `https://docs.reservesense.com/api/errors#rate-limited`\
**Status:** 429

A usage limit was reached. Wait and retry. AI generation services have a daily cap; other limits may apply.

## Internal

**Type:** `https://docs.reservesense.com/api/errors#internal`\
**Status:** 500

The request failed because of a server-side error. Retry later. If it continues, contact [info@reservesense.com](mailto:info@reservesense.com) with the time of the request and what you were doing.

## Unavailable

**Type:** `https://docs.reservesense.com/api/errors#unavailable`\
**Status:** 503

A required service is temporarily down. A third-party dependency may be offline. Retry later.