> For the complete documentation index, see [llms.txt](https://faq.droam.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://faq.droam.com/menu/webhooks/webhook-payload-types/rule-payloads/sim-pools-payloads.md).

# SIM Pools Payloads

Occurs when certain rules related to the SIM Pool has been triggered. 

**rule.pool.usage.triggered** – occurs when Pool usage has been changed (Listing 5.19). 

**Listing 5.19 – Example of rule.pool.usage.triggered Payload (JSON)**

<pre><code>{
<strong>    "type":     "rule.pool.usage.triggered",
</strong>    "data":     {
        "rule":     {...//Rule Model},
        "pool":     {...//Pool Model}
    },
    "created_at":  {...//Date Time Model}
}
</code></pre>