# Custom Activities

### Custom Activity Types

On the [Custom Activity Types](https://app.usepylon.com/settings/custom-activities) page in settings, create types of activity:

* Sync in custom signals from your own product
* Sync in signals from other systems 

<figure><img src="https://982123570-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9hXBoCTTNw5flARlUVJf%2Fuploads%2FOl8YmB0iJvMNKtF3ZWbz%2FCleanShot%202025-04-21%20at%2020.03.46.png?alt=media&#x26;token=c1382dca-6a68-47a8-8f32-d62d7b878644" alt=""><figcaption></figcaption></figure>

### Account Activity

Using the [activity API](https://docs.usepylon.com/pylon-docs/developer/api/api-reference/accounts/activities), write in custom events that will show up in the account activity timeline and be accessible from AI features like [ask-ai](https://docs.usepylon.com/pylon-docs/platform/ask-ai "mention") and be available in the account [Broken link](https://docs.usepylon.com/pylon-docs/account-intelligence/activities/broken-reference "mention") blocks. Account activities can also be aggregated on the account level with [formulas](https://docs.usepylon.com/pylon-docs/account-intelligence/fields/formulas "mention")!

<figure><img src="https://982123570-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9hXBoCTTNw5flARlUVJf%2Fuploads%2FN2cpQKF18XkGoClnpFZm%2FCleanShot%202025-04-21%20at%2020.22.35.png?alt=media&#x26;token=050a1213-2a60-42ef-af0c-1c832d273bcc" alt=""><figcaption><p>Activity log for account</p></figcaption></figure>

<figure><img src="https://982123570-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9hXBoCTTNw5flARlUVJf%2Fuploads%2Fu18uI7zcoqfhntKSLWg6%2FCleanShot%202025-04-21%20at%2020.47.27.png?alt=media&#x26;token=a1c5b932-7901-4c62-a8c7-6d8cf8905a55" alt=""><figcaption><p><a data-mention href="broken-reference">Broken link</a> block in account <a data-mention href="broken-reference">Broken link</a> reading from activity</p></figcaption></figure>


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