Single Sign On set up with ADFS may be requesting a user to enter their credentials every time they attempt to use Nintex Promapp with SSO even if they are connected to the domain.

Internet Explorer - add federation site as a local intranet site in IE which can be done via group policy.

Chrome - Add Windows Integrated Authentication. You can add the following using PowerShell on the ADFS server using the following cmd Set-AdfsProperties -WIASupportedUserAgents ((Get-ADFSProperties | Select -ExpandProperty WIASupportedUserAgents) + “Chrome”)