SharePoint Online is one of the services delivered by Office 365. Although it is a very powerful platform, in time you might run into the following complications, while using it:
  – Information on SharePoint sites grows up fast, and eventually it might get difficult to find the information you need. In addition, too many users may have access to more content than they want or really need.
  – By setting library and document-level permissions you can control access to sensitive information. However, you might hit some problems, due to the fact that subsites inherit the permissions from the parent site.
A suitable way to address these problems is to use subsites. In the following Step-by-Step video tutorial we demonstrate how to plan the sites and subsites in your SharePoint site collection. You will see how to create and customize a subsite, so it fits better your team needs.
At the end, you will learn how to import new site templates to the existing set of SharePoint site templates, and how to save and export an existing SharePoint site as a template.