Some Visma applications might require your users using your external Identity Providers to authenticate with multifactor authentication (two-step authentication).
Check your Identity Providers documentation for how to configure this, or follow these links for your provider.
Microsoft Entra ID
Enable for single users: https://learn.microsoft.com/en-us/entra/identity/authentication/howto-mfa-userstates
Enable for multiple users: https://learn.microsoft.com/en-us/entra/identity/authentication/tutorial-enable-azure-mfa