Matching Ship ID
Ship ID 1 can be used for a store code or location code to id your customers' ShipTo's.
Load Addresses, Ship To, puts them on the Shipping tab. Dialog Prefs, Live List puts them on a popup for Ship To, Other that you can Filter (type an entry above column).
They can then be used for customizing order automation. And they can be used to update Contacts from a spreadsheet if Ship ID 1 is the way to find the ones to change.
Related: