---
metadata:
  - name: generator
    content: Diplodoc Platform v5.63.4
alternate:
  - https://appmetrica.yandex.com/docs/en/mobile-api/stat/metrics/error_events_join/errors.md
  - https://appmetrica.yandex.com/docs/ru/mobile-api/stat/metrics/error_events_join/errors.md
  - https://appmetrica.yandex.com/docs/zh/mobile-api/stat/metrics/error_events_join/errors.md
  - href: https://appmetrica.yandex.com/docs/en/mobile-api/stat/metrics/error_events_join/errors.md
    type: text/markdown
    title: Markdown version
  - href: https://appmetrica.yandex.com/docs/en/llms.txt?revision=r21698989
    rel: describedby
---
> **Documentation Index:** Fetch the complete configuration index at https://appmetrica.yandex.com/docs/en/llms.txt?revision=r21698989

# Errors

#|
||**Metrica**|**Name**|**Description**|**Type**|**Filter option**|**Minimum date for report generation**||
||`ym:er2:errors`|Errors| |`int`|present|2013-10-21||
||`ym:er2:errorSessions`|Number of sessions where an error occurred| |`int`|present|2013-10-21||
||`ym:er2:errorBackgroundSessions`|Number of background sessions with errors| |`int`|present|2013-10-21||
||`ym:er2:errorDevices`|Number of devices where errors occurred| |`int`|present|2013-10-21||
|#