# Implementation

The exact method in which you implement server-side API calls to impact.com on your site is up to your discretion and specific requirements. This page describes what you'll need to do and keep in mind when implementing.

{% hint style="warning" %}
**Important:** This integration requires a skilled web developer comfortable with JavaScript, HTML, tag managers, and browser developer tools to configure, implement, and test. Before continuing, *make sure you are logged in* to [impact.com](https://www.impact.com/).
{% endhint %}

impact.com also **strongly recommends** implementing an intelligent retry functionality for API calls that may fail. Any call that results in a `5XX` response code should be retried automatically.

## Check before integrating

impact.com will complete several integration steps on your behalf. Check with your implementation engineer to ensure that the following configuration steps have been completed: *Event Type*, *Gateway Tracking*, *General Tracking*.

## Capture & Store `im_ref`

* impact.com will dynamically populate an `im_ref` value in your landing page URL (e.g. `https://www.example.com/store/product1?im_ref=1234567`) when visitors are directed to your site from an impact.com tracking link. The query string parameter name is `im_ref`.
* The `im_ref` value should be captured and stored in the browser (e.g., in a first-party cookie) and available if the same visitor returns directly to your site in another session.
* If, during the customer journey, the website URL changes from one domain to another, the stored `im_ref` value should be passed and stored under the new domain.

## Report conversions to the `/Conversions/` endpoint

When a conversion event occurs, you’ll need to make a server-side API call to the `/Conversions/` endpoint with conversion data. When impact.com receives this data, attribution for the conversion is determined and awarded to a partner, making it a new pending action.

{% hint style="success" %}
**Note:** Refer to the [full endpoint documentation](https://integrations.impact.com/impact-brand/reference/conversions-model) to see code examples, parameter definitions, and more.
{% endhint %}

### Example call

In the example below:

* There are two (2) Product Name 1 items being purchased at a unit price of 14.00 each for a SKU set subtotal of 28.00.
* There are three (3) Product Name 2 items being purchased at a unit price of 33.00 each for a SKU set subtotal of 99.00.
* impact.com will take the $15 discount passed and apply that proportionately to all items in the purchase.

A `/Conversions/` call can be customized based on your specific requirements — refer to the full endpoint documentation to learn about additional parameters.

{% tabs %}
{% tab title="cURL" %}

```bash
curl ‘https://api.impact.com/Advertisers/<AccountSID>/Conversions’ \
  -X POST \
  -u ‘<AccountSID>:<AuthToken>’ \
  -H 'Accept: application/json' \
  -H 'Content-Type: application/x-www-form-urlencoded' \ 
  -d ‘CampaignId=1000’ \
  -d ‘EventTypeId=9876’ \
  -d ‘EventDate=2024-08-01T23:55:24-08:00’ \
  -d ‘ClickId=QiiWXOVnrQ3SQHl24jQjyxBGUkmzfJ3i1VHrWM0’ \
  -d ‘CustomerId=BCZ2WVSH674563PDPYOTM3AXDQ’ \
  -d ‘CurrencyCode=USD’ \
  -d ‘OrderId=O1234567’ \
  -d ‘OrderDiscount=15.00’ \
  -d ‘OrderPromoCode=15BUCKSOFF' \
  -d ‘ItemSku1=1ABC2345' \
  -d ‘ItemName1=Product Name 1’ \
  -d ‘ItemCategory1=Hardware’ \
  -d ‘ItemQuantity1=2' \
  -d ‘ItemSubTotal1=28.00’ \
  -d ‘ItemSku2=9ZXY7654’ \
  -d ‘ItemName2=Product Name 2’ \
  -d ‘ItemCategory2=Gardening’ \
  -d ‘ItemQuantity2=3’ \
  -d ‘ItemSubTotal2=99.00’
```

{% endtab %}
{% endtabs %}

### End-to-End Testing

Once the impact.com app is fully installed, you can begin end-to-end testing to ensure everything is working properly. Learn how to proceed with [End-to-End Testing](/integration-guides/end-to-end-tests.md).


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