# Rule: Raise Error

### Raise Error Example

If two products that should not be purchased together are selected, an error will present to the user as a red text pop-up. 

Event on the Rule Set to trigger the rule: Plan Selected.

{% code overflow="wrap" lineNumbers="true" %}

```
IF:
    Id = _____ (or Name = _____ )
AND
    Selected = True
AND
    Second.Id = ______ (or Second.Name = _____ )
AND
    Second.selected = True
THEN:
    Raise Error (Text entered into the textbox. Does not support HTML. Ex: "Error. These plans cannot be purchased together")
```

{% endcode %}


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