Each office has a description and most businesses will only have one location or description. This description could be a name, location, or type of office. For example this is the main office and this is the warehouse. If in a franchise setting each office description would be the name of that business or the owner's name followed by the word "office".
For example: Bill Smith's Office. This is not Bill Smith but his office.
When an office is selected you can see the physical address for that location along with the directions and cross street information should you decide to put that information in. Otherwise it can be left blank.
If the physical and mailing address are the same you do not need to add in another address. However, if they have a different mailing address you should enter it by clicking on either the label or address field - they will turn red indicating you can edit them.
If the organization file is for a customer, you will have the option of adding one more address which would be for billing purposes.