I'm using Webforms to populate my CRM. Customers choose their country from a drop-down list.

Once it is in my CRM, I'd like to update a field named 'Region' based on the customer's country of origin. For example, all European countries should be in the Region 'Europe'.

That's the first step. Then in some countries (Canada and USA), I also want the region to be based on the state.

Any tips about where I should start?

Thanks,

Benoit