Actually what kind of validation you need. It is not default functionlity. Tell us your validation rquirement. Then people can give you suggestion. Meanwhile you can set those rules and check this Set if 'Street address' is enabled.'Street address' enabled: Check if 'Street address' is required.'Street address' required: Set if 'Street address 2' is enabled.'Street address 2' enabled: Check if 'Street address 2' is required.'Street address 2' required: Set if 'Zip / postal code' is enabled.'Zip / postal code' enabled: Check if 'Zip / postal code' is required.'Zip / postal code' required: Set if 'City' is enabled.'City' enabled: Check if 'City' is required.'City' required: Set if 'Country' is enabled.'Country' enabled: Set if 'State/province' is enabled.'State/province' enabled:
Nop Does not provide address validation. it accepts some random city with random postal code. I am looking for the address validation as well. it seems that I would need to go for options like UPS Address Validation API and integrate with NOP