> For the complete documentation index, see [llms.txt](https://fusionauth.io/docs/llms.txt)

# Verify a User Registration

API documentation for the FusionAuth Verify a User Registration API.

# Verify a User Registration

This API is used to mark a User Registration as verified. This is usually called after the User receives the registration verification email after they register and they click the link in the email.

## Request

[!No Authentication Required](https://fusionauth.io/docs/apis/authentication.md#no-authentication-required)

Verifies the User Registration using a verificationId.

POST/api/user/verify-registration

OpenAPI Spec

[!No Authentication Required](https://fusionauth.io/docs/apis/authentication.md#no-authentication-required)

Verifies the User Registration using a verificationId.

POST/api/user/verify-registration/{verificationId}

### Request Parameters

`verificationId`StringrequiredDEPRECATED

The verification Id generated by FusionAuth used to verify the User's registration is valid by ensuring they have access to the provided email address.

Deprecated since 1.27.0

This value can still be provided on the URL segment as shown in the above example, but it is recommended you send this value in the request body instead using the **verificationId** field. If the value is provided in the URL segment and in the request body, the value provided in the request body will be preferred.

### Request Body

`oneTimeCode`StringoptionalAvailable since 1.27.0

The short code used to verify the User's registration is valid by ensuring they have access to the provided email address. This field is required when the registration **verification strategy** on the Application is set to `FormField`.

This field is required when the registration **verification strategy** on the Application is set to `Form field`.

`verificationId`StringrequiredAvailable since 1.27.0

The verification Id generated by FusionAuth used to verify the User's registration is valid by ensuring they have access to the provided email address.

When using the `Form field` strategy for registration verification, this value is used along with the **oneTimeCode** as a pair to verify the registration.

If the **verificationId** is provided in the URL segment and in the request body, the value provided in the request body will be preferred.

#### Request Headers

`X-FusionAuth-TenantId`Stringoptional

The unique Id of the tenant used to scope this API request.

The tenant Id is not required on this request even when more than one tenant has been configured because the tenant can be identified based upon the request parameters or it is otherwise not required.

Specify a tenant Id on this request when you want to ensure the request is scoped to a specific tenant. The tenant Id may be provided through this header or by using a tenant locked API key to achieve the same result.

See [Making an API request using a Tenant Id](https://fusionauth.io/docs/apis/authentication.md#making-an-api-request-using-a-tenant-id) for additional information.

## Response

The response does not contain a body. It only contains one of the status codes below.

*Response Codes*

| Code | Description |
| --- | --- |
| 200 | The request was successful. |
| 400 | The request was invalid and/or malformed. The response will contain an [Errors](https://fusionauth.io/docs/apis/errors.md) JSON Object with the specific errors. |
| 404 | The User does not exist or is not registered to the requested Application. The response will be empty. |
| 500 | There was an internal error. A stack trace is provided and logged in the FusionAuth log files. The response will be empty. |
| 503 | The search index is not available or encountered an exception so the request cannot be completed. The response will contain a JSON body. |