Guides & troubleshootingOn this pageGuides SLO guides In the SLO guides section, you can find the extensive guides on: SLO CalculationsOverview of assumptions underlying Nobl9 SLO calculations.Reliability and error budgetOverview of reliability and error budget calculations.Editing SLOsA comprehensive guide on editing SLOs.Calendar-aligned SLOsOverview of the Time slices error budget calculation method.Time slicesOverview of the Occurrences error budget calculation method.OccurrencesOverview of the Occurrences error budget calculation method.SLI aggregationsOverview of SLI aggregations on the Nobl9 platform.Configuring SLO signalsMaking SLO signals from incidents more prominent.Composite SLOsOverview of assumptions underlying Nobl9 composite SLOs.Use cases of composite SLOsReal-life use cases of Nobl9 composite SLOs. Troubleshooting and data retention The Guides section is oriented towards getting things done: TroubleshootingTroubleshoot any issues you may run into on your SLO journey with Nobl9Data retentionCheck Nobl9 data retention policy