# `Stripe.Params.SubscriptionScheduleUpdateParams.Phases.Items`
[🔗](https://github.com/jeffhuen/tiger_stripe/blob/main/lib/stripe/params/subscription_schedule_update_params.ex#L373)

Nested parameters.

# `t`

```elixir
@type t() :: %Stripe.Params.SubscriptionScheduleUpdateParams.Phases.Items{
  billing_thresholds: map() | nil,
  discounts: map() | nil,
  metadata: %{required(String.t()) => String.t()} | nil,
  plan: String.t() | nil,
  price: String.t() | nil,
  price_data:
    Stripe.Params.SubscriptionScheduleUpdateParams.Phases.Items.PriceData.t()
    | nil,
  quantity: integer() | nil,
  tax_rates: map() | nil
}
```

* `billing_thresholds` - Define thresholds at which an invoice will be sent, and the subscription advanced to a new billing period. Pass an empty string to remove previously-defined thresholds.
* `discounts` - The coupons to redeem into discounts for the subscription item.
* `metadata` - Set of [key-value pairs](https://docs.stripe.com/api/metadata) that you can attach to a configuration item. Metadata on a configuration item will update the underlying subscription item's `metadata` when the phase is entered, adding new keys and replacing existing keys. Individual keys in the subscription item's `metadata` can be unset by posting an empty value to them in the configuration item's `metadata`. To unset all keys in the subscription item's `metadata`, update the subscription item directly or unset every key individually from the configuration item's `metadata`.
* `plan` - The plan ID to subscribe to. You may specify the same ID in `plan` and `price`. Max length: 5000.
* `price` - The ID of the price object. Max length: 5000.
* `price_data` - Data used to generate a new [Price](https://docs.stripe.com/api/prices) object inline.
* `quantity` - Quantity for the given price. Can be set only if the price's `usage_type` is `licensed` and not `metered`.
* `tax_rates` - A list of [Tax Rate](https://docs.stripe.com/api/tax_rates) ids. These Tax Rates will override the [`default_tax_rates`](https://docs.stripe.com/api/subscriptions/create#create_subscription-default_tax_rates) on the Subscription. When updating, pass an empty string to remove previously-defined tax rates.

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*Consult [api-reference.md](api-reference.md) for complete listing*