This code is used to identify the country associated with the information.
In the country table, which controls this field, there is a certain number of characteristics useful to perform controls on dependent information, and especially:
- the telephone number format,
- the format of the number that identifies a company or an activity (site tax ID number, NAF in France), and whether its entry is mandatory or not,
- the format of the postal code/town/city and the geographical subdivision, and whether its entry is mandatory or not,
- the mandatory or not mandatory aspect of the Site Registration number entry, of the identification number of the company as well as the EU tax no.,
- the format of the Bank ID number code.