Learning Path allows you to deliver custom content specific to the role assigned to a user, and publish different content to different organizations within your deployment. This means, for example, that on a given page, screen, form, or view, you can display different Help content for sales people vs. customer service reps. You can also display different content for the same role in different organizations. You can even localize your content in different languages for different users and organizations.

Content you create can be published across organizations, as well as exported from one organization and imported into another.

Learning Path provides a great way to help people discover new features and become familiar with new forms or business processes at their own pace right from the app. This can help you reduce training time and costs and enable your users to quickly become productive using Dynamics 365 (online).

More information :
https://www.microsoft.com/en-us/dynamics/crm-customer-center/create-your-own-guided-help-learning-path-for-your-customers.aspx
https://www.microsoft.com/en-us/dynamics/crm-customer-center/default.aspx
https://www.microsoft.com/en-us/dynamics/crm-setup-and-administration/default.aspx