---
title: "Add participants"
method: POST
path: "/v1/whatsapp/wa-groups/{groupId}/participants"
tags: ["WhatsApp"]
---

# Add participants

`POST /v1/whatsapp/wa-groups/{groupId}/participants`

Add participants to a WhatsApp group. Maximum 8 participants per request.

Not available on [Coexistence](/platforms/whatsapp/connection#whatsapp-business-app-coexistence) numbers. Requires a Cloud API-only number.

## Path parameters

- `groupId` string, required

## Query parameters

- `accountId` string, required

## Request body

- object
  - `phoneNumbers` string[], required — Phone numbers in E.164 format (max 8)

## Response `200`

Participants added

- object
  - `success` boolean
  - `message` string

## Other responses

- `400` — Invalid request
- `401` — Unauthorized

---

[API](https://skmtc.net/zernio/apis/zernio-api.md) · [All operations](https://skmtc.net/zernio/apis/zernio-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/zernio/zernio-api/revisions/15e893e69e8c/schema)