> ## Documentation Index > Fetch the complete documentation index at: https://docs.fintoc.com/llms.txt > Use this file to discover all available pages before exploring further. # Open the widget for Refresh Intents **Only for multifactor authentication logins** You don't need to open the widget for Refresh Intents if the `requires_mfa` fields is `null`. If the bank of the link you're trying to refresh requires multifactor authentication (MFA) for the *login*, then you will have to opent the widget on your frontend so the user can enter its second factor. For security reasons, this cannot be done purely through the API. You can review which institutions require MFA on login at the [Institutions](/v2023-11-15/docs/movements/overview-data-aggregation/products-and-institutions-movements) table. For now, this functionality is only enabled for banks in Mexico. The configuration to open the widget should look like this: ```html theme={null} ``` Here, the `widgetToken` parameter corresponds to the token located inside the `requires_mfa` object of the Refresh Intent. You can read more about the widget and its configurations at the [Widget](/v2023-11-15/docs/resources/widget) documentation.