Brevo Transactional Email Template Parameters

Need help APIs
1

I want to have dynamic data in my email send by the API Brevo. So I put the dynamic text “PRENOM”

Email de confirmation d'inscription EXPLORISSIMA - BtoC - Editor - Google Chrome 29_11_2023 18_21_18
Email de confirmation d'inscription EXPLORISSIMA - BtoC - Editor - Google Chrome 29_11_2023 18_21_181920×907 111 KB

And with a workflow, I send my email

Email de confirmation d'inscription EXPLORISSIMA - BtoC - Editor - Google Chrome 29_11_2023 18_14_40

But when I receive the email, the dynamic data doesn’t work, and I sure at 90% the problem is in my JSON, I don’t know how to implement parameters

Please help me,

Thanks !