# ExceptionImpact

Estimated passthrough for one parsed alert query against one dataset

**Type**: `object`

## Properties

- name: measuredAt (optional)
  type: string
  description: When the estimation run that produced this percentage completed. Absent when the age of the measurement is not known; that is not the same as freshly measured.

- name: percentage (required)
  type: number
  description: Estimated percentage of the dataset's raw log volume this query matches. Honouring the query as a pipeline exception passes approximately this share of the data through without aggregation.