The locations page is where you list the physical areas within your business that store and/or process data eg the name and address of your acountants, your office addresses etc.
If you have more than one eg hosting provider, please create two entries, one for each.
You can assign a location to a contact eg the person that looks after your hosting.
You can Load Sample Data to give you some ideas of areas in your organisation that may process and store data.
Make sure if you are using Sample Data that you have customised the data to fit in with your organisational and operational structure. Generally, data that requires customising will be enclosed within square brackets e.g. [[Assign me]], simply replace the square brackets and the contents with suitable data relevant to your business.