I am using a Brevo template do send a temporary password to the user.
1 - I created the template and inserted the parameters in brevo
2 - I am making an API call with the parameters on the body
3 - The email is delivered without the dynamic parameters.
But according to your original post, you didn’t set your parameters correctly in Brevo. Check the link I’ve provided. It should be {{params.email_login}} for example