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To change the name of your site:
Log in as a System Administrator
Click on the cogwheel icon in the top menu, and select "Settings"
Modify both the Full Site Name and Short Site Name
Click on "Save Changes" at the bottom of the page
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Important Notes
You cannot change the URL. If you need to change the URL, you must contact us via our Help Center.
Some of the other settings on this page can affect your system and have undesirable consequence. This is particularly true for the "Default Site Home Role". Do not change these settings unless you know exactly what you are doing.