Why can't I find a country in the list when I add a Selling Location?

The Add Selling Country popup hides countries that are already in your list, because each country can only be added once.

To change a country you already added:

1. Go to Settings → Store Settings → Selling Location.
2. Find the country in the table and click Edit.
3. Change its Status between Enabled and Paused.
4. Click Update.

To start over with a country, click Delete on its row and confirm Remove. It then appears again in the Add list. The code and dial code fill in automatically from the country you pick.