Validate ZIP code and country
The ZIP codes from a city should be validated by the ERP. The transport cost often depends on country but currently, SANA allows any ZIP code and country combination. So I have had B2C scenario's where customers selected the wrong country and payed less transport costs due to this.
1) Option to set the field zip code in SANA admin as drop down instead of text for customer registration & profile fields.
2) If this set like this in SANA, customers can only select ZIP codes based on the ZIP code table of the ERP. In this case the list of ZIP codes is also filtered based on the selected country
Note: Customers can still type in ZIP codes manually but if they type 10, the list of ZIP codes in the shop is filtered on ZIP codes starting with 10 for the selected country.
3) The option to check ZIP codes by country can be activated by country in the ERP. This in order to avoid having to load all ZIP codes for exotic countries if you ship world wide.