You’d add work locations so you have the right places listed in the system for things like expenses and mileage, so people can pick the correct site when logging travel or costs.
You can also group locations for example, 'Head Office' and then add individual locations within that group.
You can add more site locations to your system by following the below steps:
Click Admin Menu or Configuration depending on your systems configuration then click Settings.
Expand Module Settings then click Expenses.
Click Standard Location Groups
Add a group i.e. Head Office, then you can add a name and address within that group.