# A diagram says Needs enhanced diagram rendering

The diagram is a type that only Capable's rendering service can draw, and external diagram rendering is turned off on your site.

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## What you are seeing

| **You see**                                                                                                                     | **When**                                                      |
| ------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------- |
| Showing the last saved image. This diagram type needs enhanced diagram rendering.                                               | The diagram has a saved image. It shows, but does not redraw. |
| Needs enhanced diagram rendering: This diagram type is drawn by Capable's rendering service, which is turned off for this site. | There is no saved image to show.                              |

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## What to do

* If you are a Confluence admin, turn on External diagram rendering in Global settings, Diagrams, General. The message says: "Turn on Enhanced diagram rendering in the Diagrams settings to draw it live."
* If you are not, ask an admin. The message says: "A Confluence admin can turn on Enhanced diagram rendering in the Diagrams settings."
* If your organisation keeps the service off on purpose, redraw the diagram in a type drawn in the browser, such as Mermaid or PlantUML.

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## A few things worth knowing

* The overlay can be dismissed, but the diagram will not redraw until the switch is on.
* PlantUML that includes files from outside the standard library also needs the service.
* A diagram with no saved image was probably created on another site or before it was ever viewed.

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## Related

### [External diagram rendering](https://help.gocapable.com/diagrams/external-diagram-rendering.html)

Which types need it.

### [Diagram does not render](https://help.gocapable.com/diagrams/diagram-does-not-render.html)

Other causes.

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_Not broken. Switched off._