When people log into 15Five for the first time after being invited, they will see an onboarding guide walking them through the 15Five check-in. To get a preview of the onboarding guide live and in-app for your role, use this link. The onboarding guide will vary slightly for reporters, reviewers, and account creators.
The above link will show you the respective guide based on your role in 15Five, ie if you are the account creator, the link will pull up the account creator guide. If you are a reviewer, you will see the reviewer guide.
Onboarding guide for reporters
Onboarding guide for reviewers
Onboarding guide for account creators
Account adminstrators will see either the reporter or reviewer guide, depending on whether or not they have direct reports assigned to them when invited.