# Post an account grant

Adding account users to company account by email domain.

Endpoint: POST /v4/accounts/{accountId}/users
Version: 2026-09-18
Security: ZephrHmacHttp

## Security:

  - `ZephrHmacHttp` (unknown)
    http ZEPHR-HMAC-*

## Path parameters:

  - `accountId` (string, required)
    Unique Account Company identifier

## Response 202:

  - `202` (unknown)
    OK - Adding account users to company account `accountId` was successful

## Response 202 fields (application/json):

  - `tenantId` (string)
    Example: test_account_users

  - `subTenantId` (string)
    Example: test_account_users

  - `user_id` (string)
    Example: 0123456789ABCD

  - `account_id` (string)
    Example: 0123456789ABCD

  - `user_type` (string)
    Example: user

  - `user_email` (string)
    Example: joe$RAND+2@yahoo.com

## Response 409:

  - `409` (unknown)
    Conflict - Cannot add account users to company account `accountId`

## Response 500:

  - `500` (unknown)
    Internal Error - Failed to bulk add account users for account `accountId`

## Response 202 examples:

  - `response` (unknown)