Difference between STS#0 and STS#3 template in SharePoint Online

Roopak Sahoo 51 Reputation points


We have a SharePoint online classic site collection where we can create modern as well as classic SharePoint subsites
but when we create a classic subsite[STS#0] and a modern subsite[STS#3].

beside the classic pages and modern site pages in both the templates, what are the other features which are available in STS#3 which is not available in STS#0.

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  1. Yi Lu_MSFT 17,456 Reputation points

    Hi,@Roopak Sahoo

    STS#3 template is a site with new experience and no connection to an Office 365 Group.

    SST#0 template is a site with a classic experience on the home page and no connection to an Office 365 Group.

    In addition to classic pages and modern pages, the modern document lists and library experience in SharePoint is faster, displays better in mobile browsers, and is easier to use than the classic experience.

    As a SharePoint in Microsoft 365 site owner, you can view information about how users interact with your site through Site Usage.

    What’s more, Power Automate is easier than before to automate processes without extensive developer resources. Power Automate uses a rich, graphical interface that makes it simpler to automate processes, and is designed to work great on mobile devices.

    You could also learn more about the difference between modern sites and classic sites by the article:

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    2 people found this answer helpful.

  2. xStar Donovan 0 Reputation points

    This is going to sound odd, but 1 factor that seems to drive which ones I have been asked to create in the past is the Calendar.
    STS#0 (classic) can insert a calendar in a page as a web part that shows a monthly view & can have recurring events.
    STS#3 (modern) can't insert a calendar as a page. Instead you can insert an event viewer web part, but it shows tiles with no options for a full-month view & also won't let you enter recurring events.

    I wouldn't have predicted embedding a full-feature calendar in a page vs navigating to it would be THE deal-breaker on modern, but from past experience, for some divisions/teams/users/etc within an org, it absolutely is!

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