Context: We configured OneDrive and SharePoint 2019 on-premises.
The requirement is to disable subsites and sites creation for end users and to hide the following two buttons:
Create site button from SharePoint home page
New site button from their OneDrive page
Currently the users can't create sites, but they can see the buttons, and when they press the buttons ,it guides them through the steps to name and create site then displays a confusing error message when it comes time for the site to be created.
The concern is that Help Desk is going to be flooded with tickets to fix the broken issue when it's really not meant to work at all.
Any answers or suggestions appreciated!
What I have done so far:
Went into SharePoint Central Administration > web application > User Permissions > unselected the checkbox for “Subsite creation”.