# Duplicate `price_id` fields sent in the items list

The subscription cannot have multiple items with the same `price_id`.

---

## Example

```json
{
  "error": {
    "type": "request_error",
    "code": "subscription_duplicate_price_ids",
    "detail": "a subscription cannot have multiple items with the same price_id",
    "documentation_url": "https://developer.paddle.com/errors/subscriptions/subscription_duplicate_price_ids"
  },
  "meta": {
    "request_id": "00000000-0000-0000-0000-000000000000"
  }
}
```

## Details

| Attribute | Value |
| --- | --- |
| Status code | 400 |
| Error code | `subscription_duplicate_price_ids` |
| Error message | a subscription cannot have multiple items with the same price_id |

## Common causes

- Prices must be unique on a subscription. You sent the same `price_id` more than once in the `items` array.

## Common solutions

- Combine duplicate `price_id` items into a single item in the array, then retry your request.