> ## Documentation Index
> Fetch the complete documentation index at: https://docs.slm.m1amdocs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Rate Plan Tier

## Attributes

| Name | Type | Description |
| - | - | - |
| name | string |   |
| rate\_price | [Rate Plan Price](Rate_Plan_Price) | Required. An array of Rate Plan Price objects, which define the Price (or prices) for this Tier (one price for each currency used). |
| charge\_customer | enum | Can be: `FlatFee` which defines a stepped pricing structure, in which the customer is charged the rate price per Tier or `PerUnit` which defines a graduated pricing structure, in which the customer is charged the number of units accessed, multiplied by the rate price per tier. |
| begins\_at\_level | decimal | The number of Units at which this Tier’s pricing structure takes effect. The number of Units defined for each Tier runs from the minimum value of the Tier, to one Unit less than the minimum value of the next higher Tier. *Typically the first tier would have beginsAtLevel = 1. The final, highest tier is unbounded (infinite).* |

**Parent topic:**[Resources](../topics/Resources)


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