> ## Documentation Index
> Fetch the complete documentation index at: https://docs.bigdelta.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Send plan limit events

> Track when accounts hit or reset their plan limits to trigger upsell opportunities.

<Frame caption="Plan Limit Reached and Plan Limit Reset activities">
  <img src="https://mintcdn.com/bigdelta/hmhLNT9eENs3z0DP/images/plan%20limit%20reached%20and%20reset.png?fit=max&auto=format&n=hmhLNT9eENs3z0DP&q=85&s=7878a8e825d6d11d4691a6386a4d41ca" alt="Plan Limit Reached and Plan Limit Reset activities in the activity timeline" width="362" height="182" data-path="images/plan limit reached and reset.png" />
</Frame>

If your product has plans with feature limits or metered usage (e.g., API calls, seats, storage), send these events when accounts hit or reset their limits.

**What you need to provide:**

* `Plan Limit Reached` and `Plan Limit Reset` events via the SDK or [API](https://eu.api.bigdelta.com/docs)

<CodeGroup>
  ```javascript SDK theme={null}
  client.track({ event_name: 'Plan Limit Reached' });

  client.track({ event_name: 'Plan Limit Reset' });
  ```

  ```bash API theme={null}
  curl -X POST https://eu.api.bigdelta.com/v1/events \
    -H "Authorization: Bearer <API_KEY>" \
    -H "Content-Type: application/json" \
    -d '{ "event_name": "Plan Limit Reached" }'
  ```
</CodeGroup>

**What you unlock:**

* **[Plan Limit activities](/guide/features/activities)** — Plan Limit Reached and Plan Limit Reset activities are generated from the events you send
* Moments can trigger on plan limits, so you can automatically reach out when a customer hits their limit — a natural upsell opportunity