| Name | Type | Description | Notes |
|---|---|---|---|
| price_format | String | Indicates if the price is a flat fee or is per unit. Character limit: 8 Values: `Flat Fee`, `Per Unit` | [optional] |
| rate_plan_charge_id | String | The ID of the subscription or amendment rate plan charge associated with this tier. You can't create an unassociated tier. Character limit: 32 Values: inherited from `RatePlanCharge`.`Id` |