How do I create the Success message for different language versions of my form?

I vaguely recall setting some condition and then entering the appropriate language but now forget it.

Hello drkirkwilson,

You can set a thank you message depending on the selected value by using a condition. This guide will give more explanation on how to make it happen: https://www.jotform.com/help/317-Change-Thank-you-URL-Based-on-a-Condition

Feel free to let us know if you have more questions.