---
title: "POST /v2beta1/accounts/{accountId}/clients/{clientAccountId}/invitations"
method: POST
path: "/v2beta1/accounts/{accountId}/clients/{clientAccountId}/invitations"
tags: ["accounts"]
---

# POST /v2beta1/accounts/{accountId}/clients/{clientAccountId}/invitations

`POST /v2beta1/accounts/{accountId}/clients/{clientAccountId}/invitations`

## Request

- Base URL: `https://adexchangebuyer.googleapis.com`
- URL: `https://adexchangebuyer.googleapis.com/v2beta1/accounts/{accountId}/clients/{clientAccountId}/invitations`
- Auth: OAuth 2 and OAuth 2
  - Implicit: `https://accounts.google.com/o/oauth2/auth`
  - Scopes: `https://www.googleapis.com/auth/adexchange.buyer`
  - Authorization code: `https://accounts.google.com/o/oauth2/auth`
  - Token URL: `https://accounts.google.com/o/oauth2/token` scopes: `https://www.googleapis.com/auth/adexchange.buyer`

Creates and sends out an email invitation to access an Ad Exchange client buyer account.

## Path parameters

- `accountId` string, int64, required
- `clientAccountId` string, int64, required

## Request body

- ClientUserInvitation: An invitation for a new client user to get access to the Authorized Buyers UI. All fields are required unless otherwise specified.
  - `clientAccountId` string, int64: Numerical account ID of the client buyer that the invited user is associated with. The value of this field is ignored in create operations.
  - `email` string: The email address to which the invitation is sent. Email addresses should be unique among all client users under each sponsor buyer.
  - `invitationId` string, int64: The unique numerical ID of the invitation that is sent to the user. The value of this field is ignored in create operations.

## Response `200`

Successful response

- ClientUserInvitation: An invitation for a new client user to get access to the Authorized Buyers UI. All fields are required unless otherwise specified.
  - `clientAccountId` string, int64: Numerical account ID of the client buyer that the invited user is associated with. The value of this field is ignored in create operations.
  - `email` string: The email address to which the invitation is sent. Email addresses should be unique among all client users under each sponsor buyer.
  - `invitationId` string, int64: The unique numerical ID of the invitation that is sent to the user. The value of this field is ignored in create operations.

## Changes

- **2026-10-10** `af1a744df07b`: 2 breaking
  - removed the request body
  - removed the media type `*/*` for the response with the status `200`

[Operation history](https://skmtc.dev/google/apis/adexchangebuyer2/changes/v2beta1/accounts/:accountId/clients/:clientAccountId/invitations/post.md)

---

[API](https://skmtc.dev/google/apis/adexchangebuyer2.md) - [All operations](https://skmtc.dev/google/apis/adexchangebuyer2/llms.txt) - [OpenAPI document](https://skmtc.dev/google/apis/adexchangebuyer2/revisions/0aaaaa1fffb0?raw)