# Overview

Rewardful can send webhook events to **endpoints** that notify your application any time an event happens in your account.

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**Related:** [Webhooks — The Definitive Guide](https://requestbin.com/blog/working-with-webhooks/)
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A common example is to receive a webhook when an affiliate signs up, which allows you to subscribe that affiliate to an email campaign in an external email service provider.

Webhooks can also be used to connect Rewardful with [Zapier](https://zapier.com/). To see an example of how to do this, see our [How to connect Rewardful to Zapier](https://www.youtube.com/watch?v=FC1uH47xc7Q) screencast.

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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://developers.rewardful.com/webhooks/overview.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.