# QSS (Quality of Service Subscription) - August 15, 2022

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_Original publication date: August 23, 2022_

Zoom Quality of Service Subscription (QSS) is an add-on product that
enables Developers to receive details about the network traffic in near
real-time for users, hosts, and participants in their meetings,
webinars, and phone calls. This data can be used to proactively
troubleshoot and identify issues as quickly as possible. [Contact Zoom
Sales](https://explore.zoom.us/en/contactsales/)
to add this feature.

[Learn more about QSS
here](https://explore.zoom.us/en/qss/).

## Requirements

In addition to having the QSS product on your account, at least one user
on the account must have Developer permissions enabled to be able to
create an application that can subscribe to QSS events. This user should
create a Zoom app and enable webhooks. See [Using
webhooks](/docs/api/webhooks/)
for details.

## To enable QSS events

On the **Feature** page for the Marketplace app, enable **Event
Subscription** and add the **Event notification endpoint URL** to send
the webhooks. Click **Add events** and select **QSS**. Select the QSS
events that you’d like to receive.

See a list of events and their details in [QSS Event
reference](/docs/api/qss/events).
You can also access this documentation on the left sidebar navigation on
the [API Reference](/docs/api/qss/)
page.