This Knowledge Base article contains information about the TourOpp GO multi-language feature and how it relates to the messages you write in the platform.
Solution
TourOpp GO multi-language feature translates all the messages to the customer's phone number area code. It means, it does not matter if you write the messages in your native language or other because the customer will receive them in the official language corresponding to his phone number's dialing code.
That being said, we find that the automatic translation features usually works better if it's originally written in plain and simple English.
If you have further questions about this for your specific operation or need help on how to write your messages, contact your Account Manager.
Related links
How to Avoid the Text From Your Messages to Be Translated
My Customers Do Not Receive the Messages in Their Mother Language