---
metadata:
  - name: generator
    content: Diplodoc Platform v5.63.4
alternate:
  - https://appmetrica.yandex.com/docs/en/mobile-api/stat/metrics/error_events_join/errors_join.md
  - https://appmetrica.yandex.com/docs/ru/mobile-api/stat/metrics/error_events_join/errors_join.md
  - https://appmetrica.yandex.com/docs/zh/mobile-api/stat/metrics/error_events_join/errors_join.md
  - href: https://appmetrica.yandex.com/docs/en/mobile-api/stat/metrics/error_events_join/errors_join.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

# Percentage of the audience

#|
||**Metrica**|**Name**|**Description**|**Type**|**Filter option**|**Minimum date for report generation**||
||`ym:er2:errorsDevicesPercentage`|Percentage of devices with errors| |`percents`|present|2013-10-21||
||`ym:er2:errorsFreeDevicesPercentage`|Percentage of devices without errors| |`percents`|present|2013-10-21||
||`ym:er2:errorsFreeSessionsPercentage`|Percentage of foreground sessions without errors| |`percents`|present|2013-10-21||
||`ym:er2:errorsBackgroundSessionsPercentage`|Percentage of background sessions without errors| |`percents`|present|2013-10-21||
|#