# Authentication methods

With this option, it is possible to define which authentication methods each group can use.

<figure><img src="/files/9J1FskPwn2knKPU9M4Oy" alt=""><figcaption></figcaption></figure>

You can have different authentication methods according to the users' groups. For example, members of the "Collaborators" group may only authenticate using Microsoft authentication, while members of the "External Users" group can sign in with any authentication method.

### Priority and operation rules

* When an authentication method is unchecked in the Settings screen, it will not be shown on the login screen and cannot be used by any user, even if that authentication method is checked for the user.
* If the authentication method is allowed in the Settings screen, the system then checks whether the user can use the chosen authentication method, validating this property in the user's registration or whether the user belongs to a group that has this permission enabled.
* If no authentication method is selected, all will be allowed.
* If the user belongs to a group that has no authentication method enabled, that user will be able to sign in to the portal using any authentication method.


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