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Countries to Add: allows you to add new countries which will be listed in country fields when setting up contact/company addresses
Edit Country Panel
The information in this panel reflects the currently selected country. From here you can change country details and the States configured under them (fields will display a red left border if a value is required and purple text if the field is read-only and cannot be modified).
Edit Country Fields:
Name: the name of the country
Country Code: the two letter country code defined in ISO 3166 (autopopulated)
Postal Code Type: allows you to enable postal code validation for Canada or the United States or set no postal code validation at all
Address Format: indicates what address details are required when populating address details on a contact/company (autopopulated)
States tab
This tab allows you to add, remove and change the sort order of states configured on the country.