When setting, you specify in which countries you are ready to ship
You can easily choose if you only send to your home country
or send to, for example, neighboring countries.
Your ad will only be seen in the countries you've specified.
If you eg. Germany and Austria have indicated as the country of delivery,
for example, a visitor from Switzerland does not see your ad.
For example, within Austria you pay 0.68 euros to Porto, from Austria to Germany 0.80 euros
Other countries can be found in the price calculator of the post office.