Yes, it is possible to send a message to more than one country at a time. You just need to ensure that when you send messages to international numbers, you have the appropriate country code in front of each number so that they can be routed correctly.
However, please be aware that as messages are charged per network / destination, costs may vary on messages sent internationally - for more information refer to our SMS product page.
Note:When sending messages to different countries, customers are obligated to comply with all applicable regulations and requirements pertaining to that country. The Sinch Customer Dashboard contains comprehensive Country Information pages, which detail regulatory and compliance information to help you communicate successfully with different countries.