# AppsFlyer - Click Signing

The feature provides ability to sign every single Click sent to AppsFlyer from Offer18.

{% hint style="info" %}
**How it works ?**\
A unique code (Signature) with a expiry period is attached to a Click and sent via the AppsFlyer's Attribution URL. If the Signature is expired or Invalid, the Click will be rejected in AppsFlyer. You can learn more about this feature here :link:[ AppsFlyer](https://support.appsflyer.com/hc/en-us/articles/360017831497-Click-signing-for-ad-networks)
{% endhint %}

***

### Enable Click Signing <a href="#how-to-enable-click-signing" id="how-to-enable-click-signing"></a>

{% hint style="info" %}
**Get AppsFlyer Access Key**

* Login into your AppsFlyer account
* Go to Security Center » API Tokens
* Copy your API token &#x20;
  {% endhint %}

1. Go to Offer18 Account » Settings
2. Go to Tracking&#x20;
3. Select "Enable Signature Validation"
4. Place "AppsFlyer API Token" in "Access Key Field"
5. Select Advertiser » Submit

<figure><img src="https://295230641-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F41f2EboJipeUA6flsLGK%2Fuploads%2F3pnlninp46VIyqW4qVdE%2Fimage.png?alt=media&#x26;token=09aa60e5-4b83-497e-8317-2e8331469a86" alt=""><figcaption></figcaption></figure>

***

### Test Click Signing&#x20;

1. Go to Offer18 Account » Settings
2. Tracking » Test Click Signing&#x20;
3. Select Partner: "AppsFlyer"
4. Place "AppsFlyer API Token" in "Secret Key"
5. Place AppsFlyer's Tracking URL Containing Click ID and Signature in "Partner Tracking URL"
6. Submit

![](https://295230641-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F41f2EboJipeUA6flsLGK%2Fuploads%2FbM7QJ5PGM61GqDwfBgHl%2Fimage.png?alt=media\&token=e58a99f2-b81a-4cca-a463-e3fa49149be8)

***

### Use Case

The use case of this tool will be that not even a single Click will redirect without validation. The network whose traffic is redirecting, will be able to configure at his end.


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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://knowledgebase.offer18.com/network/mobile-attribution-integration/appsflyer/appsflyer-click-signing.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.