Mark is the manager for Contoso Corporation. Contoso Corporation is a package delivery organization, delivering parcels in parts of San Francisco, CA. He notices a lot of small issues with respect to the data quality being put up by different employees who enter data into the system. One of the issues he notices is with respect to ZIP codes. He wishes to aid the employees as they type in the various ZIP codes into the contact's address field so that there are lesser chances of error while the entry is being done by the staff. The following is a list of ZIP codes handled by Contoso Corporation:

• 94102,94104.94103
• 94105,94108,94107

Let's look at the solution that Mark can utilize to provide assistance to his employees so that there are fewer chances of errors creeping in.