Yes. the steps are different depending on your Forms version. So, in
this case it appears you are following documentation targeted for 6.4.
Is your version below 6.4, say 6.3, for example?In the Allow field,
select All users - All the users, anonymous or logged in, can preview
attachments, verify and sign forms, and click Save. Author instance is
configured to use Adobe Sign.This setting is valid for the Forms Common
Configuration Service in version 6.4.thanks,KJ