Why is the deal budget not being passed to Amocrm?

Question

PHP

Hello, using the instructions hamtim.ru/2017/11/07/hamtim-amocrm implemented integration with the store. But the transaction budget in CRM is always equal to 0 rubles.
print_r of my request (which successfully passes all the way through and ends up in crm)

Array
(
    [name] => Заказ №129
    [status_id] => 17808022
    [sale] => 1000000
    [tags] => mysite.ru
)

And in the CMR as a result:

Why can this be so?

Answer 1

there the parameter was renamed, from cost (mine) to price

Answer 2

it would be better to look at the documentation, and not some left articles
https://developers.amocrm.com/rest_api/leads_set.php

Answer 3

Found something to integrate. It is not clear where this panel transfers your customer data except for CRM.