> For the complete documentation index, see [llms.txt](https://kbase.whitelabel-loyalty.com/product/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kbase.whitelabel-loyalty.com/product/loyalty-engine/audiences/audience-tutorials/create-audiences-based-on-user-activity/create-an-audience-of-users-who-have-purchased-a-particular-reward.md).

# Create an audience of users who have purchased a particular reward

## Introduction

Tracking users who have purchased a particular reward can be useful for a number of reasons. The audience can be used for simple reporting about the number of users who have engaged with an individual reward. Additionally it can be used alongside reward availability criteria to ensure that users can only purchase the reward a limited number of times.

***

## Configuration

1. Navigate to Users > Audiences and then click 'Create' in the top right corner.
2. Give the audience a name and description. Turn on AUDIENCE\_JOINED and AUDIENCE\_LEFT events if needed. Set the refresh rate to 'Reactive'.
3. Move to the criteria tab. The criteria should be;
   * Event type is `PURCHASED_REWARD`
   * Profile matches JSON schema

     ```json
     {
       "$schema": "http://json-schema.org/draft-06/schema#",
       "type": "object",
       "required": [
         "rewardId"
       ],
       "properties": {
         "rewardId": {
           "enum": [
             "enter reward ID here"
           ]
         }
       }
     }
     ```
   * Event occurrence count is greater than 0
4. Click save.

***

## Tips

* You can enter multiple `rewardId` in the schema to track purchases of more than one reward in a single audience. This can then be used to create a 'Choose Reward A or B' type campaign.
* Increase the event occurrence number in the audience criteria if you'd like the reward to be purchasable more than once.
* Adding date criteria to the audience would mean that a reward is only purchasable x number of times *within a certain time period*. For example, adding the criteria "Reported at is later than 1 week ago' would mean that a user would leave the audience a week after purchasing the reward, and therefore be able to purchase the reward again. Change the refresh rate to 'Daily Reactive' if you want to configure this setup.


---

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