---
title: "Get message summary for a contact"
method: GET
path: "/v3/contacts/{contactId}/message-summary"
tags: ["Contacts"]
---

# Get message summary for a contact

`GET /v3/contacts/{contactId}/message-summary`

Returns aggregate message counts, time bounds, channels used, and per-channel success/fail scores (each as a percentage 0-100 of messages on that channel) for one of your contacts. Successful terminal states: SENT/DELIVERED/READ for outbound, RECEIVED for inbound. Fail: FAILED.

## Path parameters

- `contactId` string, uuid, required

## Headers

- `x-profile-id` string, uuid

## Response `200`

Summary returned successfully

- SentDmServicesEndpointsCustomerAPIv3ResponsesApiResponseOfContactMessageSummaryResponse — Standard API response envelope for all v3 endpoints
  - `success` boolean — Indicates whether the request was successful
  - `data` SentDmServicesEndpointsCustomerAPIv3ResponsesContactMessageSummaryResponse
    - `contact_id` string, uuid
    - `message_count` integer
    - `first_message_at` string, date-time, nullable
    - `last_message_at` string, date-time, nullable
    - `channels_used` string[]
    - `channel_scores` SentDmServicesEndpointsCustomerAPIv3ResponsesChannelScoreResponse[]
      - `channel` string
      - `success_score` integer — Percentage (0-100) of messages on this channel that reached a successful terminal state: SENT/DELIVERED/READ for outbound, RECEIVED for inbound.
      - `fail_score` integer — Percentage (0-100) of messages on this channel that ended in FAILED.
  - `error` SentDmServicesEndpointsCustomerAPIv3ResponsesApiError — Error information
    - `code` string — Machine-readable error code (e.g., "RESOURCE_001")
    - `message` string — Human-readable error message
    - `details` object, nullable — Additional validation error details (field-level errors)
    - `doc_url` string, nullable — URL to documentation about this error
  - `meta` SentDmServicesEndpointsCustomerAPIv3ResponsesApiMeta — Request and response metadata
    - `request_id` string — Unique identifier for this request (for tracing and support)
    - `timestamp` string, date-time — Server timestamp when the response was generated
    - `version` string — API version used for this request

## Other responses

- `400` — Invalid request - ContactId is empty or invalid format
- `401` — Unauthorized - Invalid or missing API credentials
- `403` — Forbidden
- `404` — Contact not found for the authenticated customer
- `500` — Internal server error - Contact support with request ID

---

[API](https://skmtc.net/sentdm/apis/sent-dm-api-v3.md) · [All operations](https://skmtc.net/sentdm/apis/sent-dm-api-v3/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/sentdm/sent-dm-api-v3/versions/c451eca46f1b/schema)