# Preview a vendor estimation run

**POST** `/v1/integrations/{integrationId}/exceptions/vendor-estimation-runs/preview`

**Operation ID**: `previewVendorEstimationRun`
**Summary**: Preview a vendor estimation run
Returns how many exceptions and distinct queries a run would cover, and which exceptions cannot be counted because their query never parsed. Writes nothing.

## Tags
- Integration Exceptions
## Parameters

- **integrationId** (required) - path
  - Integration id
  - Type: string

## Request Body

**Content-Type**: `application/json`

**Schema**: `CreateVendorEstimationRunRequest`

## Responses

### 200

Preview computed

- **Content-Type**: `application/json` / `VendorEstimationRunPreview`
### 400

Bad Request - The window is inverted, starts or ends in the future, or is too long.

### 401

Unauthorized

### 404

Not Found - Integration not found.