# customer.changed\_tier

## `customer.changed_tier`

#### Payload Structure

```js
{
  "payload": {
    "createdAt": "2025-05-30T11:17:19.646Z",
    "tierId": "6a538edc",
    "merchantId": "inveterate",
    "detail": {
      "previousTierName": "PAID0402",
      "previousTierId": "3a636361",
      "tierName": "FREE"
    },
    "updatedAt": "2025-05-30T11:17:19.646Z",
    "customerId": "7733576892547"
  },
  "metadata": {
    "id": "3b8313888e852a1b4a285dbe4334a610",
    "retryCount": 0,
    "shopDomain": "inveterate.myshopify.com",
    "topic": "customer.changed_tier",
    "version": "2025-06",
    "triggerredAt": "2025-05-30T11:17:21.144Z"
  }
}
```

#### Payload Fields

**payload**

* `createdAt` (string): ISO timestamp when the event was created
* `tierId` (string): Unique identifier for the new tier the customer moved to
* `merchantId` (string): Merchant identifier
* `customerId` (string): Customer identifier
* `updatedAt` (string): ISO timestamp when the event was last updated
* `detail` (object): Additional details about the tier change
  * `previousTierName` (string): Name of the tier the customer moved from
  * `previousTierId` (string): ID of the tier the customer moved from
  * `tierName` (string): Name of the new tier the customer moved to

**metadata**

* `id` (string): Unique event identifier
* `retryCount` (number): Number of retry attempts for this event
* `shopDomain` (string): Shopify domain of the merchant
* `topic` (string): Event topic name
* `version` (string): API version
* `triggerredAt` (string): ISO timestamp when the event was triggered