# BillingRunUnmatchedUsageDto

A model the API reference uses in a request or a response. The operation pages link every field typed as this model here.

Usage a merchant recorded in the billed period that no rate entry on its price plan priced, so
it produced no line item and was not billed. One entry per SKU.

## Fields
- `skuCode` (string): The SKU code that recorded the usage. (nullable)
- `displayName` (string): The SKU's display name when the run executed. (nullable)
- `environment` ([UsageEnvironment](https://devportal.demo.winkpg.io/docs/api/models/UsageEnvironment.md)): The environment the SKU meters (Production or Sandbox), when known. (nullable)
  Values:
  - `Production`: Production environment. Default for all SKUs.
  - `Sandbox`: Sandbox/developer portal environment with separate quotas.
- `category` (string): The SKU's category when the run executed, for example Transactions. (nullable)
- `quantity` (integer(int64)): The quantity that no rate entry priced. (nullable)

## See also

- [All documentation](https://devportal.demo.winkpg.io/llms.txt): the machine-readable index of every public page on this site.