---
title: "Get latest error instance for an error group"
method: GET
path: "/applications/{application-identifier}/error-groups/{error-group-identifier}/instance/latest"
tags: ["errors"]
---

# Get latest error instance for an error group

`GET /applications/{application-identifier}/error-groups/{error-group-identifier}/instance/latest`

Returns the latest (most recent) error instance for the specified error group

## Response `200`

OK

- ErrorInstance
  - `identifier` string, required — Identifier of the error instance
  - `applicationIdentifier` string, required — Identifier of the application the error instance belongs to
  - `errorGroupIdentifier` string, required — Identifier of the error group this instance belongs to
  - `occurredOn` string, date-time, required — When this error instance occurred
  - `error` ErrorDetail, required
    - `message` string — The error message
    - `className` string — The exception class name
    - `innerError` ErrorDetail — recursive
    - `innerErrors` ErrorDetail[] — Multiple inner exceptions (for AggregateException scenarios)
    - `stackTrace` StackFrameDetail[] — Stack trace frames
      - `lineNumber` integer — Line number in the source file
      - `columnNumber` integer — Column number in the source file
      - `className` string — Class name containing the method
      - `fileName` string — File name of the source code
      - `methodName` string — Method name
      - `raw` string — Raw stack frame string
  - `tags` string[] — Tags associated with this error instance
  - `userCustomData` object — Custom data provided by the user/application
  - `client` ClientDetail
    - `name` string — Name of the client SDK
    - `version` string — Version of the client SDK
    - `clientUrl` string, uri — URL of the client SDK
  - `request` RequestDetail
    - `url` string, uri — HTTP URL that was being requested
    - `httpMethod` string — HTTP method (GET, POST, etc.)
    - `headers` object — Request headers
    - `queryString` object — Query string parameters
    - `form` object — Form data if applicable
    - `rawData` unknown
    - `ipAddress` string — IP address of the client
    - `hostName` string — Host header value
  - `user` UserDetail
    - `identifier` string — User identifier
    - `isAnonymous` boolean — Whether the user is anonymous
    - `email` string, email — User's email address
    - `fullName` string — User's full name
    - `firstName` string — User's first name
    - `uuid` string, uuid — UUID for this user
  - `breadcrumbs` BreadcrumbDetail[] — Breadcrumbs leading up to the error
    - `message` string — Message describing the breadcrumb
    - `category` string — Category of the breadcrumb
    - `level` string — Level of the breadcrumb (info, warning, error, etc.)
    - `timestamp` string, date-time — When this breadcrumb was recorded
    - `type` string — Type of breadcrumb
    - `customData` object — Custom data associated with the breadcrumb
  - `environment` EnvironmentDetail
    - `processorCount` integer — Processor count
    - `osVersion` string — Operating system version
    - `windowBoundsWidth` string — Window bounds width if applicable
    - `windowBoundsHeight` string — Window bounds height if applicable
    - `browser` string — Browser name if this is a web application
    - `browserVersion` string — Browser version
    - `colorDepth` integer — Color depth of the display
    - `resolutionWidth` integer — Screen resolution width
    - `resolutionHeight` integer — Screen resolution height
    - `currentCulture` string — Current culture
    - `totalPhysicalMemory` integer — Total physical memory
    - `availablePhysicalMemory` integer — Available physical memory
    - `totalVirtualMemory` integer — Total virtual memory
    - `availableVirtualMemory` integer — Available virtual memory
    - `diskSpaceFree` string — Disk space information
    - `architecture` string — Architecture (x86, x64, etc.)
  - `version` string — Version of the application when the error occurred
  - `machineName` string — Name of the machine where the error occurred
  - `applicationUrl` string, uri, required — URL to view this error instance in the Raygun application

## Other responses

- `401` — Problem Details
- `403` — Problem Details
- `404` — Problem Details
- `429` — Too many requests

## Changes

- **2026-08-05** `13074513b266` — 1 breaking
  - the `request/rawData` response's property type/format changed from `string`/`` to ``/`` for status `200`

[Change history](https://skmtc.dev/raygun/apis/raygun-api/changes/applications/:application-identifier/error-groups/:error-group-identifier/instance/latest/get.md)

---

[API](https://skmtc.dev/raygun/apis/raygun-api.md) · [All operations](https://skmtc.dev/raygun/apis/raygun-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/raygun/raygun-api/revisions/45caf50be25e/schema)