---
title: "Update call summary"
method: PATCH
path: "/v2/api/conversations/items/{id}/summary"
tags: ["Conversations"]
---

# Update call summary

`PATCH /v2/api/conversations/items/{id}/summary`

Replace the markdown content of a call's AI-generated summary.

Only call items have summaries — passing an SMS ID (`msg-*`) returns `400 INVALID_ITEM_ID`. If multiple completed summary templates exist on the same call, set `template_key` to disambiguate.

## Path parameters

- `id` string, required

## Request body

- object
  - `content` string, required — Full replacement markdown content. Max 100,000 characters.
  - `template_key` 'MARKDOWN_CLASSIC' | 'MARKDOWN_SHORT_CALL', nullable — Required only when the call has more than one completed summary template.

## Response `200`

Updated summary

- object
  - `data` CallSummary
    - `id` string — Call ID this summary belongs to
    - `content` string, nullable — Markdown summary content
    - `version` integer — Optimistic-lock version. Increments on every successful update.
    - `updated_at` string, date-time, nullable
    - `updated_by` object, nullable
      - `id` string
      - `name` string, nullable

## Other responses

- `400` — Invalid request parameters
- `401` — Invalid or missing API key
- `404` — Resource not found
- `429` — Rate limit exceeded

---

[API](https://skmtc.dev/withallo/apis/allo-api.md) · [All operations](https://skmtc.dev/withallo/apis/allo-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/withallo/allo-api/revisions/9aab4db82933/schema)