> For the complete documentation index, see [llms.txt](https://help.impact.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.impact.com/brand/what-would-you-like-to-learn-about/account-administration/account-settings/invite-and-manage-users/control-user-sign-up-methods.md).

# Control User Sign-up Methods

You can set how users may sign up to join your account and define user sign-up authorization and authentication methods.

{% hint style="success" %}
**Note**: Only users with [Account Security Settings permissions](/brand/what-would-you-like-to-learn-about/account-administration/account-settings/invite-and-manage-users/understanding-user-management-as-a-brand.md) can access the *User Signup Method* section.
{% endhint %}

1. From the top navigation bar, select ![](/files/2qeX6EqajzdOPiwzfeV5) **\[User profile] → Settings**.
2. On the left, under the *General* section, select [**Account User Authentication**](https://app.impact.com/secure/advertiser/accountSettings/account-security-settings-flow.ihtml).
3. In the *User Signup Method* section, select the preferred method you'd like the user to sign up with when joining your account.

{% tabs %}
{% tab title="Single sign-on (SSO)" %}

1. Select ![](/files/4AJktj2qcV3ZjYYKylZP) **\[Checkbox]** **Single sign-on (SSO)**.
2. Select one or multiple sign-up methods:
   * Apple
   * Google
     {% endtab %}

{% tab title="SAML" %}
Refer to [Enable SAML Single Sign-On](/brand/what-would-you-like-to-learn-about/account-administration/account-settings/invite-and-manage-users/enable-saml-single-sign-on.md) for more information on using this method.

1. Select ![](/files/4AJktj2qcV3ZjYYKylZP) **\[Checkbox]** **SAML**.
2. Select the ![](/files/jA6jLZ1RleK5VI2zmvap) **\[Drop-down menu]**, then select your preferred option:
   1. Impact
   2. AD FS
   3. Microsoft Entra ID
   4. Okta
   5. Onelogin

{% hint style="warning" %}
**Important**: Users that have joined your account using the *SAML* method cannot be reverted to the *Username & Password* method.
{% endhint %}
{% endtab %}
{% endtabs %}

4. Select **Save**.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://help.impact.com/brand/what-would-you-like-to-learn-about/account-administration/account-settings/invite-and-manage-users/control-user-sign-up-methods.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.