---
title: "Preview DNM groupings for participants"
method: POST
path: "/api/exports/validate/dnm-groupings"
tags: ["Exports"]
---

# Preview DNM groupings for participants

`POST /api/exports/validate/dnm-groupings`

## Request

- Base URL: `https://api.production.yourmedley.com`
- URL: `https://api.production.yourmedley.com/api/exports/validate/dnm-groupings`
- Auth: HTTP bearer

Calculate Do Not Match groupings and identify participants missing manager data. Used to preview grouping results before export.

## Request body

- object
  - `context_type` 'global' | 'cohort' | 'partner'
  - `context_id` string, uuid, required
  - `filter_context` object

## Response `200`

DNM groupings preview

- object
  - `success` boolean
  - `data` object
    - `total_groups` integer: Number of distinct DNM groups
    - `total_participants_with_groupings` integer: Number of participants assigned to a group
    - `total_participants` integer: Total participants in context
    - `missing_manager_count` integer: Participants without manager data
    - `missing_manager_participants` object[]
      - `first_name` string
      - `last_name` string

## Other responses

- `400`: Missing context_id
- `401`: Unauthorized

---

[API](https://skmtc.dev/withmedley/apis/medley-api.md) - [All operations](https://skmtc.dev/withmedley/apis/medley-api/llms.txt) - [OpenAPI document](https://skmtc.dev/withmedley/apis/medley-api/revisions/40aaac5ca6bd?raw)