# Understand transaction data

## What gets sent to iAdvize?

Each time a visitor completes a transaction on your site, the following information is sent to iAdvize:

* Transaction ID (unique identifier)
* Transaction amount

## How transactions are attributed to conversations

By default, iAdvize links a transaction to a conversation if it occurs within 48 hours of the conversation ending.

> *This 48-hour attribution window can be customized. If needed, reach out to your Customer Success Manager (CSM) to adjust this setting.*

{% hint style="info" %}
**Why is this important?**

When you run a query to retrieve transaction data per conversation or per day, keep in mind that a transaction may not fall within the same time interval as the conversation that generated it.\\
{% endhint %}

## Example: How attribution works in practice

Let’s say a visitor chats with your team on Monday and purchases something the next day:

* Monday, Jan 1 — 10:00 AM: Conversation starts
* Monday, Jan 1 — 10:12 AM: Visitor leaves; the conversation is closed
* Tuesday, Jan 2 — 2:08 PM: Visitor completes a purchase on your website\\

This transaction will be attributed to the conversation from Monday, because it occurred within the 48-hour window.

## Important tip for querying

If you run a [**closedConversation**](https://graphql.iadvize.dev/queries/closedConversations) query using an interval that ends on Monday, Jan 1, after 10:12 AM the transaction that occurred on Tuesday, Jan 2 will not appear in the results, even though it’s linked to the Jan 1 conversation.

{% hint style="info" %}
**Best practice:**

When analyzing transactions linked to conversations, always extend your date range to account for the attribution window (48 hours by default, or whatever value is set in your account).
{% endhint %}

\
How to retrieve a list of all your transactions
-----------------------------------------------

The query [**conversions**](https://graphql.iadvize.dev/queries/conversions) allows you to list and filter transactions.

If you wish to catch all transaction as soon as they go through, please make sure you read our information regarding our [transaction webhook](https://docs.iadvize.dev/technologies/webhooks/reference#transaction.attributed).

## What is the best query to use for my need?

* Use the `closedConversations` query to **retrieve transactions attached to specific conversations**. These are available directly within the conversation object (if applicable).
* Use the [`conversions` query](https://graphql.iadvize.dev/queries/conversions) to retrieve **a list of all transactions**, independently of conversations. This is useful for post-processing or analyzing attribution across time.


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