---
title: "Outbound warm-transfer failures grouped by normalized reason"
method: GET
path: "/v1/analytics/voice/warm-transfers/failure-reasons"
tags: ["analytics"]
---

# Outbound warm-transfer failures grouped by normalized reason

`GET /v1/analytics/voice/warm-transfers/failure-reasons`

## Request

- The document declares no server URL.
- Auth: API key in header `x-api-key`
- TypeScript: <https://skmtc.dev/oneloop-hq/apis/feather-api/docs/v1/analytics/voice/warm-transfers/failure-reasons/get.ts> (a function with typed inputs; its response is checked against the schema)

## Query parameters

- `agent_id` string, uuid, nullable
- `start_date` string, date, required
- `end_date` string, date, required

## Response `200`

Successful Response

- WarmTransferFailureReasonRow[]
  - `failure_reason` string, required
  - `failed_attempts` integer, required
  - `share_pct` number, required

## Other responses

- `400`: Bad request
- `401`: Authentication required
- `422`: Validation Error

## Changes

- **2026-08-12** `5a5597ebb2d6`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/oneloop-hq/apis/feather-api/changes/v1/analytics/voice/warm-transfers/failure-reasons/get.md)

---

[API](https://skmtc.dev/oneloop-hq/apis/feather-api.md) - [All operations](https://skmtc.dev/oneloop-hq/apis/feather-api/llms.txt) - [OpenAPI document](https://skmtc.dev/oneloop-hq/apis/feather-api/revisions/9cd7291d4228?raw)