> For the complete documentation index, see [llms.txt](https://developer.harness.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.harness.io/release-orchestration/use-release-orchestration.md).

# Use Release Orchestration

- [Processes](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-processes.md): Learn about release processes, how they model release workflows, and how to create them.
- [Overview](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-processes/overview.md): Learn about release processes and how they model release workflows.
- [Process Modeling](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-processes/process-modeling.md): Learn how to model release processes using phases, activities, and dependencies.
- [AI-Based Process Creation](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-processes/ai-based-process-creation.md): Use AI to generate release processes from natural language descriptions.
- [Phases](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-phases.md): Learn how phases structure a release process in Release Orchestration
- [Overview](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-phases/phases-overview.md): Learn about phases and how they structure release processes
- [Creating Phases](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-phases/creating-phases.md): Learn how to create and configure phases in release processes
- [Phase Dependencies](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-phases/phase-dependencies.md): Learn how to configure dependencies between phases to control execution order
- [Loop phases and activities](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-phases/phase-looping.md): Run a phase or activity multiple times across different targets using looping support in Release Orchestration
- [Activities](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-activities.md): Explore activities, the activity store, and the activity types available in Release Orchestration
- [Overview](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-activities/activities-overview.md): Learn about activities and their role in Release Orchestration release processes
- [Activity Store](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-activities/activity-store.md): Learn about the activity store and how to create and reuse activities across release processes
- [Activity Types](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-activities/activity-types.md): Explore the automated, manual, and subprocess activity types supported in Release Orchestration
- [Automated Activities](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-activities/activity-types/automated-activities.md): Learn about automated activities and how to configure pipeline inputs and outputs for them
- [Manual Activities](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-activities/activity-types/manual-activities.md): Learn about manual activities and how to configure them for human intervention in release processes
- [Subprocess Activities](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-activities/activity-types/subprocess-activities.md): Learn about subprocess activities and how to compose release processes from other processes
- [Releases](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-releases.md): Learn about releases, how they represent planned deployments, and how to manage them.
- [Overview](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-releases/overview.md): Learn about releases and how they represent planned deployments.
- [Modeling Releases](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-releases/modeling-releases.md): Learn how to create and model releases from processes.
- [Release Calendar](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-releases/release-calendar.md): Visualize and manage all your releases using the release calendar.
- [Ad Hoc Releases](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-releases/adhoc-releases.md): Learn how to create and execute releases on demand, outside of release groups.
- [Release Reports](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-releases/release-reports.md): Learn how to generate and download Excel reports for releases and release groups.
- [Artifacts](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-artifacts.md): Find topics about tracking artifacts and changesets in Release Orchestration.
- [Get Started with Artifact Tracker and Changesets](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-artifacts/artifact-tracker-getting-started.md): Learn how to set up Artifact Tracker to automatically track container images and compute changesets between versions.
- [Ingest Artifacts with the Webhook Signal API](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-artifacts/webhook-signal-api.md): Ingest CI-produced container images into the artifact tracker using the webhook signal API.
- [Inputs and Variables](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-inputs-variables.md): Explore inputs, the Input Store, supported expressions, and variables in Release Orchestration
- [Overview](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-inputs-variables/overview.md): Learn about inputs and variables and how they parameterize release processes
- [Input Store](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-inputs-variables/input-store.md): Learn about the Input Store and how to manage reusable inputs in Release Orchestration
- [Supported Expressions](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-inputs-variables/supported-expressions.md): Reference guide for all supported expressions in Release Orchestration
- [Variables](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-inputs-variables/variables.md): Explore variable mapping, default values, overrides, and variable types in Release Orchestration
- [Variable Mapping](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-inputs-variables/variables/variable-mapping.md): Learn how to map variables between different scopes and components
- [Default Values and Overrides](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-inputs-variables/variables/default-values-and-overrides.md): Learn how to set default values and override them at different levels
- [Variable Types](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-inputs-variables/variables/variable-types.md): Learn about the variable types available in Release Orchestration and their scope
- [Global Variables](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-inputs-variables/variables/variable-types/global-variables.md): Learn about global variables and how to use them across the entire release
- [Phase Variables](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-inputs-variables/variables/variable-types/phase-variables.md): Learn about phase variables and how to scope variables to phases
- [Activity Variables](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-inputs-variables/variables/variable-types/activity-variables.md): Learn about activity variables and how to scope variables to activities
- [Execution](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-execution.md): Find topics about executing releases, handling errors, and governing releases with OPA policy.
- [Executing a Release](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-execution/executing-a-release.md): Learn how to execute a release and monitor its progress
- [Error Handling](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-execution/error-handling.md): Learn how to handle failures and input-required steps during execution
- [Governance of a release - OPA policy](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-execution/opa-governance-for-releases.md): Learn how Harness Policy As Code evaluates OPA policies written in Rego against Release Orchestration entities, on save and on run
- [Collaboration and Approvals](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-collaboration.md): Find topics about manual activities, approvals, and sign-offs in Release Orchestration.
- [Capturing Sign-off and Approvals](https://developer.harness.io/release-orchestration/use-release-orchestration/release-orchestration-collaboration/manual-approvals.md): Learn about manual activities, approvals, and sign-offs in release processes
- [Notifications](https://developer.harness.io/release-orchestration/use-release-orchestration/notifications.md): Configure notifications for release events in Release Orchestration