How to use the method through scripting apps?

Question

I’m trying to make a change to the API through the put method however it doesn’t seem to be working as it doesn’t change the API, I don’t know but what to test, I exhausted my knowledge.

Follows the code

var params = {
    method:"PUT",
    headers:headers,
    body:{
            "PrecoVenda":12.44,
            "PrecoCusto":1.63,
        },
    
    muteHttpExceptions : true,
};

var response = UrlFetchApp.fetch(url, params);

Returns no error, it makes the request but does not make the change.

Any help will be welcome.