User Configuration > Administrative Templates > Citrix Components > Citrix Workspace > User authentication
User
HKCU\SOFTWARE\Policies\Citrix
When this policy is enabled and when already signed on to Citrix Workspace app, the same user is single signed on to Citrix Secure Access client using the store configured on the Citrix Workspace app. When disabled, users are required to provide sign-in credentials on Citrix Secure Access app.