# Process Instance Comments component
Displays comments associated with a particular process instance and allows the user to add new comments.
## Basic Usage
```html
```
### Properties
| Name | Type | Default value | Description |
| ---- | ---- | ------------- | ----------- |
| processInstanceId | `string` | | (**required**) The numeric ID of the process instance to display comments for. |
| readOnly | `boolean` | `true` | Should the comments be read-only? |
### Events
| Name | Type | Description |
| ---- | ---- | ----------- |
| error | `EventEmitter` | Emitted when an error occurs. |