---
title: "SLO reports | Grafana Cloud documentation"
description: "Use SLO reports to monitor and evaluate multiple service level objectives and understand how they perform together."
---

> For a curated documentation index, see [llms.txt](/llms.txt). For the complete documentation index, see [llms-full.txt](/llms-full.txt).

# SLO reports

SLO reports help you monitor and evaluate multiple service level objectives (SLOs). They display the performance of multiple SLOs in a single view, making it easier to track reliability trends over time and understand how SLOs perform together.

With SLO reports, you can:

- View multiple SLOs in one place, and review SLO performance trends for a given period.
- Review combined SLI and error budget results calculated across all events from all SLOs.
- Review per-SLO results, including the current SLI value, remaining error budget, and weighted impact to understand how each SLO contributes to the combined results.
- Navigate to the [SLO dashboard](/docs/grafana-cloud/alerting-and-irm/slo/dashboard/) for detailed results.

[](/media/docs/grafana-cloud/slo/screenshot-slo-reports2.png)

> Note
> 
> SLO reports support only **event-based SLOs**.
> 
> Event-based SLOs calculate the SLI by comparing successful events to total events, and define their SLIs as ratio-like queries (`numerator / denominator`). For more details, refer to [SLI examples](/docs/grafana-cloud/alerting-and-irm/slo/sli-examples/).

## Report view

For the selected period, the SLO report view includes a summary of the combined results across all SLOs, and a table listing the results of individual SLOs.

The **summary section** displays combined SLO results calculated across all events from all SLOs in the report:

- **Combined SLI value:** The success ratio across all events from all SLOs.
- **Combined objective:** The average objective across all SLOs.
- **Combined error budget remaining:** The remaining error budget calculated from all events across all SLOs.

The **SLO table** shows individual SLO results, including a sparkline for the SLI over time, and the remaining error budget at the end of the selected period. For details about how these values are calculated, refer to the [SLO dashboard](/docs/grafana-cloud/alerting-and-irm/slo/dashboard/).

### Weighted impact

The **Weighted impact** property represents how much the SLO contributes to the combined results in the summary section.

All SLOs in the report are event-based. When combining results across all SLOs, the weighted impact of an SLO is the proportion of its events relative to all events across all SLOs. It is calculated as:

- `number of events for the SLO / total number of events across all SLOs`

### Time range selection

The report displays data for the time range selected in the time picker.

When you open the report, the time range is based on the **Time window** setting of the SLO report:

- **Weekly report**: the last complete Sunday-to-Sunday week.
- **Monthly report**: the current calendar month.

You can change the time range using the time picker or dropdown options to view SLO results for a different period. The summary and SLO table update automatically.

## Create a report

To create a new report:

1. From the sidebar, select **Alerts & IRM > SLO > Reports**
2. Click **Create Report**.
3. Select one or more SLOs to include.
4. (Optional) Add a description.
5. Choose a default **Time window** for the SLO report.
   
   Select **Monthly** or **Weekly** to set the default reporting period.
   
   In the **Report view**, you can select a custom date range to view the SLO report for a specific period.
6. Click **Create**.

After saved, the report calculates historical data for the selected period and SLOs.