# Goal-Achieved Condition

A rule can contain a "Goal-achieved condition". When this feature is enabled, then you can specify a condition so that you are able to measure the success when delivering a notification.

<figure><img src="/files/A1fu8mVKQM2xu2jPo3kY" alt=""><figcaption></figcaption></figure>

The "Goal-achieved condition" can be expressed as a mathematical expression producing a boolean value. It works exactly the same as the "Condition" field.&#x20;

Have a look at [Rule Language](/platform-manual/rules/rule-language.md) to see the full feature set of the expression language.

When a "Goal-achieved condition" has been specified, then whenever a notification was delivered, then it evaluates periodically this condition until it either becomes 'true' (i.e. measures *goal achieved*), or until it 7 days have passed.


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