> For the complete documentation index, see [llms.txt](https://docs.chord.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.chord.co/activate/event-streaming/destinations/advertising/mntn/mntn-conversion-pixel.md).

# MNTN Conversion Pixel

**MNTN Conversion Pixel** is MNTN's conversion tracking pixel for Connected TV (CTV) attribution and ROAS reporting. This destination fires a JavaScript pixel on conversion events (purchases, sign-ups, leads), enabling MNTN to attribute conversions to CTV ad exposure and optimize campaigns. There is no server-side component.

For site-wide audience building and page-level attribution, use this destination alongside the [MNTN Tracking Pixel](/activate/event-streaming/destinations/advertising/mntn/mntn-tracking-pixel.md).

## Getting started

This is a browser destination. Chord adds the pixel to your page for you, so you don't install any script.

You need:

* Your MNTN advertiser ID, which is the value of the `o` parameter in MNTN's pixel snippet, found in your MNTN account.
* Conversion goals already set up in your MNTN dashboard.

## Settings

* **Destination Name** (required): a name to tell this destination apart.
* **Advertiser ID** (required): your MNTN advertiser ID. It is the value of the `o` variable in your conversion pixel snippet.
* **Conversion Type Override** (optional): a fixed conversion type to send for every event. If you leave it empty, Chord sets the type from the event name.
* **Enable Order Completed** (optional): fire the conversion pixel on Order Completed events. On by default.
* **Enable Other Track Events** (optional): fire the conversion pixel on every track event other than Order Completed. Off by default. Events without a mapping in [Event mapping](#event-mapping) use the raw event name as the conversion type.
* **Consent Requirements** (optional): the consent categories a visitor must accept before Chord sends data to this destination. See [Consent](/activate/event-streaming/consent.md).

## Connect

Add **MNTN Conversion Pixel** from the destination catalog, using the settings above. See [Connect a destination](/activate/event-streaming/connect-a-destination.md) for the full steps.

## Events

Only `track` events are supported. All other event types (page, screen, identify) are silently skipped.

## Event mapping

Chord event names are auto-mapped to MNTN conversion types. If a **Conversion Type Override** is configured, it takes priority over the auto-mapped value. If no mapping exists and no override is set, the raw event name is sent.

| Chord event                                                         | MNTN event | Notes                                                    |
| ------------------------------------------------------------------- | ---------- | -------------------------------------------------------- |
| [`Order Completed`](/collect-data/tracking-plan/order-completed.md) | `Purchase` | Requires: **Enable Order Completed** (on by default)     |
| [`Signed Up`](/collect-data/tracking-plan/signed-up.md)             | `SignUp`   | Requires: **Enable Other Track Events** (off by default) |
| `Sign Up`                                                           | `SignUp`   | Requires: **Enable Other Track Events** (off by default) |
| `Lead Generated`                                                    | `Lead`     | Requires: **Enable Other Track Events** (off by default) |
| `Generate Lead`                                                     | `Lead`     | Requires: **Enable Other Track Events** (off by default) |

## Order Completed

Fires a conversion pixel with order ID, order amount, and conversion type.

**Pixel request:** `GET https://dx.mountain.com/spx?conv=1&shaid=...&shoid=...&shoamt=...&type=...`

| Chord source (priority order)                                                                               | MNTN field | Notes                                                                                                |
| ----------------------------------------------------------------------------------------------------------- | ---------- | ---------------------------------------------------------------------------------------------------- |
| Configuration                                                                                               | `shaid`    | Advertiser ID                                                                                        |
| `properties.cart_id` > `properties.cartId` > `properties.order_id` > `properties.orderId` > `properties.id` | `shoid`    | Order identifier; empty string if not present. A cart ID wins over an order ID when both are present |
| `properties.revenue` > `properties.total` > `properties.value`                                              | `shoamt`   | Revenue preferred for accurate ROAS; empty string if not present                                     |
| Config override > auto-mapped > raw event name                                                              | `type`     | `Purchase` for Order Completed                                                                       |
| `top.document.referrer` > `document.referrer`                                                               | `tdr`      | URL-encoded, max 2048 chars; falls back when `top` is not accessible (e.g. cross-origin iframes)     |
| `parent.location.href`                                                                                      | `plh`      | URL-encoded, max 2048 chars; empty when not accessible                                               |
| Generated                                                                                                   | `cb`       | Random cache buster                                                                                  |
| *(reserved)*                                                                                                | `shocur`   | Empty                                                                                                |
| *(reserved)*                                                                                                | `shopid`   | Empty                                                                                                |
| *(reserved)*                                                                                                | `shoq`     | Empty                                                                                                |
| *(reserved)*                                                                                                | `shoup`    | Empty                                                                                                |
| *(reserved)*                                                                                                | `shpil`    | Empty                                                                                                |

## Signed Up / Sign Up

Same pixel request as Order Completed above, with `type` set to `SignUp`. Order ID and amount fields will be empty unless the event payload includes order data.

## Lead Generated / Generate Lead

Same pixel request as Order Completed above, with `type` set to `Lead`. Order ID and amount fields will be empty unless the event payload includes order data.

## Initialization

Chord does not load an external SDK for this destination. Each event fires by creating a `<script>` tag with the pixel URL as its `src` attribute, inserted before the last script tag in the document.

## CSP requirements

If your site uses a Content Security Policy, allow the following domains:

| Directive     | Domain                    |
| ------------- | ------------------------- |
| `script-src`  | `https://dx.mountain.com` |
| `connect-src` | `https://dx.mountain.com` |


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