When to use
Use for 404, 403, and unexpected failures that replace the page.
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Pattern
Honest recovery when a route, permission, or server fails.
Preview
404
The route may have moved, or the component id is unknown.
Back to componentsAppearance is not enough. This is the contract for when the control earns a place in the product.
Use for 404, 403, and unexpected failures that replace the page.
Don't force this layout onto a task with a different risk profile or a different set of fields.
Name the failure, offer a way out, and avoid blaming the user.
Every field in the pattern keeps a visible label, and primary actions remain real buttons. Error copy sits next to the field that failed.
<section>
<h1>This page is not in the library</h1>
<p>The route may have moved, or the component id is unknown.</p>
<Button href="/components">Back to components</Button>
</section>