---
title: "Add Contacts to Audience"
method: PATCH
path: "/audiences/contacts"
tags: ["Audiences > contacts"]
---

# Add Contacts to Audience

`PATCH /audiences/contacts`

## Request

- Base URL: `https://api.pinnacle.sh`
- URL: `https://api.pinnacle.sh/audiences/contacts`
- Auth: API key in header `PINNACLE-API-KEY`

Add contacts to an existing audience. This operation is additive and idempotent.

- Phone numbers that don't exist will be auto-created as contacts
- Duplicate adds are ignored
- Contacts already in the audience are ignored

## Request body

- AddContactsRequest
  - `id` string, required: Audience ID. This identifier is a string that always begins with the prefix `aud_`, for example: `aud_abc123`.
  - `contacts` string[], required: Array of phone numbers (E.164 format) or contact IDs. <br><br> **Limit:** 1 min

## Response `200`

Successfully added contacts to the audience.

- AudienceCountOnly
  - `id` string, required: Audience public ID. This identifier is a string that always begins with the prefix `aud_`, for example: `aud_abc123`.
  - `name` string, required: Audience name.
  - `description` string, required: Audience description.
  - `contactCount` integer, required: Total number of contacts in audience. Use the [Get Audience](/api-reference/audiences/get) endpoint with the pagination parameters to get the audience with its contacts.

## Other responses

- `400`: Validation failed. The payload has missing required fields and/or invalid types. <br> See https://zod.dev/error-formatting for more information.
- `401`: The request lacks valid authentication credentials or the provided credentials are invalid. <br> Ensure you're including a valid API key in the request headers and that your account has the necessary permissions to access this endpoint.
- `403`: Your subscription does not include access to this feature. <br> This occurs when attempting to use functionality that requires a higher subscription tier. Please upgrade your subscription to access this feature.
- `404`: The requested resource could not be found. <br> This may occur if the identifier is incorrect, the resource has been deleted, or you don't have permission to access it.
- `500`: An unexpected error occurred on Pinnacle's servers while processing your request. <br> If this error persists, please contact support with the request details.

---

[API](https://skmtc.dev/pinnacle/apis/pinnacle-2.md) - [All operations](https://skmtc.dev/pinnacle/apis/pinnacle-2/llms.txt) - [OpenAPI document](https://skmtc.dev/pinnacle/apis/pinnacle-2/revisions/45416dadab79?raw)