I thought it is important to let you know about an announcement Microsoft have made this month about changes to Office 365, particularly with SharePoint online.
“Starting April 1, 2019, it will no longer be possible to restrict an entire organization (tenant) to classic mode for lists and libraries.” (Announcement here)
What setting are they referring to?
If a SharePoint admin has selected that the default lists and libraries experience to be Classic for the tenant, this will no longer apply. Here is the setting in the SharePoint admin console:
What is the impact to the end user?
Any list or library that is currently being displayed to an end user using the classic experience as a result of this setting will switch to the modern experience:
Can I still restrict lists and libraries to the classic experience?
Yes you can, Microsoft have provided a number of tools to assist. You can still disable modern experience for specific site collections via a PowerShell script. This can be for a single site collection or for a list of site collections. List owners can use List Settings to configure that list to use the classic experience for all users. Users can still use the “return to classic” option on modern views of lists or libraries to temporary return to classic.
Microsoft has also provided a tool called the SharePoint Modernization scanner which identifies sites and lists that have customisations that are not supported by modern experience (all unsupported features of modern experience). Although many of these lists will automatically remain in classic experience even after this change, you may wish to keep some sites running entirely in classic to avoid users switching between different experience modes within a single site.
If you have any questions please get in touch! firstname.lastname@example.org