This article will go over how to set up your Flow to send out emails to customers based off of their Location.

Firstly, create a basic review request flow by following this guide here. It should look something like the below:

You would then need to add in an Advanced filter with the date field being Reviewer country:

You then have the choice to be inclusive or exclusive with your selected filter:

You could then set up something like the below if you were only targeting a specific country and wanted to be notified of a review from this specific country:

Another use for this advanced split can also be setting time delays for specific countries as seen in the exmaple flow below: