# Revenue Attribution

Attribution helps you better identify which messages are more successful at driving the ultimate goal, revenue conversion.

{% hint style="warning" %}
Revenue attribution is possible only if the Shopify app is installed. [Read more](/guides/integrations/shopify.md)
{% endhint %}

### Default Attribution Window

By default, 1send calculates attribution based on if a subscriber clicks the message link and makes a purchase within 7 days. But you can [adjust these windows](#adjust-attribution-window) in your account settings.

Using the default settings as an example:

{% stepper %}
{% step %}

### Day 1

Message is sent to your subscriber and they open it.
{% endstep %}

{% step %}

### Day 2

The subscriber opens the message again and clicks the message link to a product offer.
{% endstep %}

{% step %}

### Day 5

They ultimately come back and purchase the product.
{% endstep %}
{% endstepper %}

In this example, the purchase is attributed to message campaign since it's with 7 days of the subscriber clicking the link. However, if the customer were to make the purchase on day 10, then this would not be attributed to 1send.

### Adjust Attribution Window

You can change the attribution window days by going into **Settings → Account**

<figure><img src="/files/sWgApEK2MxhMqBRZUAWW" alt=""><figcaption></figcaption></figure>

Change the number of days and click **Save**


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.1send.net/learn/analytics/revenue-attribution.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.