> For the complete documentation index, see [llms.txt](https://developer.collibra.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.collibra.com/workflows/designing-workflows/processes/shape-repository/error-boundary-event.md).

# Error boundary event

This event catches a named error, which is thrown by a named error, for example one that results out of a sub-process. This event must be attached to the boundary of an activity.

<img src="/files/Pw1CcqEVKLpz0URzJC06" alt="" width="25%">

## General properties

| Property            | Description                                                           |
| ------------------- | --------------------------------------------------------------------- |
| Model ID            | The unique identifier of the element within the process model.        |
| Name                | The name of the element displayed in the diagram.                     |
| Documentation       | A description and any additional information about this element.      |
| Error code          | The code of an error definition.                                      |
| Error variable name | The name of the variable that contains the error code.                |
| Error mapping       | Map the name of the source property of an error to a target variable. |

## Visual properties

| Property         | Description                                         |
| ---------------- | --------------------------------------------------- |
| Font size        | The font size of the element in the diagram.        |
| Font weight      | The font weight of the element in the diagram.      |
| Font style       | The font style of the element in the diagram.       |
| Font color       | The font color of the element in the diagram.       |
| Background color | The background color of the element in the diagram. |
| Border color     | The border color of the element in the diagram.     |