Develop a webhook for data uploading (Bitrix24)

It is necessary to develop a webhook that will upload data
1. Trade fields
2. Unload tasks for transactions with task status

Example: in the execution funnel there is a transaction from company A
the deal is called A1
the web hook should give the unloading of the fields of company A - transaction A1 and the unloading of tasks (completed, started, not started) for transaction A1.

The webhook will be used for the personal account (tk on it: miro.com/app/board/uXjVOW...