> ## Documentation Index
> Fetch the complete documentation index at: https://docs.dittofeed.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Performed - User Property
Performed user properties select the last observed `property` value of a `track` event.
`Performed` user properties are calculated synchronously from within [event entry Journeys](/resources/journey-nodes/entry#event-entry). This guarantees that the user property value will incorporate the triggering events' properties when rendering message templates within the journey.
## Example Use Case - Last Purchased Item
As an example, imagine you are running an e-commerce application. You might create a `lastPurchasedItem` user property, to track the last item that a user purchased.
```json theme={null}
{
"type": "track",
"userId": "1234",
"event": "purchase",
"properties": {
"item": {
"name": "orange socks"
}
}
}
```
This property would then be available to render in a template.
```html theme={null}
{{ user.lastPurchasedItem | default: "this amazing item" }}!
```
***
## Walkthrough Video
```json theme={null}
{
"type": "track",
"userId": "1234",
"event": "purchase",
"properties": {
"item": {
"name": "orange socks"
}
}
}
```
This property would then be available to render in a template.
```html theme={null}
{{ user.lastPurchasedItem | default: "this amazing item" }}!
```
***
## Walkthrough Video