Specifies how you want to associate ZIP Codes with cities.
You associate each ZIP code with one or more cities. A city can also be associated with more than one ZIP code.
When you enter the ZIP code (for example on a customer card or bank account card) the program assists you in filling in the corresponding City field. If there is only one city associated with the ZIP code, the program fills in the City field automatically. If there are two or more cities associated with the ZIP code, the program displays a list of the relevant cities for you to select from.
Alternatively, if you fill in the City field before the ZIP Code field, for example on a customer card, the program either fills in the ZIP Code field (if there is only one ZIP code associated with the city) or displays a list of the ZIP codes that are set up for the city (if there is more than one ZIP code associated with the city).