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experience-ui-bundle-custom-app-generate

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MUST activate when the project contains a uiBundles/*/src/ directory and the task involves creating or configuring a Custom Application for hosting a UI bundle in Lightning Experience. Use this skill when creating a CustomApplication metadata record to surface the UI bundle in the App Launcher. Activate when files matching applications/*.app-meta.xml exist and need modification, or when the user wants to expose their app via the Lightning App Launcher without a Digital Experience Site. Do NOT use platform-custom-application-generate for this — UI bundle apps do not use tabs, action overrides, or flexipages.

plugins/builder/experience-react/skills/experience-ui-bundle-custom-app-generate/SKILL.md

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Nov 6, 2026
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# Custom Application for React UI Bundles
Create and configure a Salesforce Custom Application that hosts a React UI bundle in Lightning Experience. This skill generates the CustomApplication metadata so the app appears in the Lightning App Launcher and can be accessed by internal users.

Custom Applications differ from Experience Sites: they don't need Networks, CustomSite, DigitalExperienceConfig, or DigitalExperienceBundle metadata. The Custom Application acts as a thin launcher entry that delegates rendering to the React UI bundle referenced by `uiBundle`.

## Required Properties
Resolve all properties before generating any metadata. Each has a fallback chain — work through each option in order until a value is found.

| Property | Format | How to Resolve |
|----------|--------|----------------|
| **appName** | `lowercamelcase` (e.g., `myInternalApp`) | The UI bundle name from `uiBundles/<name>/` directory |
| **appNamespace** | String | `namespace` in `sfdx-project.json` → `sf data query -q "SELECT NamespacePrefix FROM Organization" --target-org ${usernameOrAlias}` → default `c` |
| **appLabel** | Human-readable string | User-provided, or derive from appName by converting camelCase to Title Case |
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